1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5390ab66b43d6d23f35a7a64ba77fc4d6d65c46069162d00089ba2931a00b5f. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09f1d323-8a43-42e4-8179-ad8cd83bf530.json and https://artists.proofprofile.net/proofs/artist/09f1d323-8a43-42e4-8179-ad8cd83bf530.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e0fa134dfba48868afadaaed55d6a768a1d0b61cb7df1d2941f7a4d5998abb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9500376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6b06994297dc14c91f192bd904728176c72089af60e86a9076a8d4a5e40741. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9500402.
Andrea Chénier: Come un bel dì di maggio
Orchestra of the Royal Opera House, Covent Garden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b19e529b515b0ce7d769d20a5b2beb6ac13979845f6374537f66d66934e2e9. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0302226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3214dd9b019c48236b22d63bbaeea3e0d5a688185dc6fb9dee46b856938c25e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0301566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61432c7e3f0b6efeffe509d83af5a6243ddc58a05400932e181f6c35b9412f70. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0203203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f792ae5bb5278bfff2ddbf1b55382ea7fe771d9ead6a5768420d613e8339e6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0103080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ea6faa8b787d31f8d0b400405cdf46ba0dfa0afc51fd53a2946899ca3b2673. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0302254.
Les pêcheurs de perles, WD 13: Je crois entendre encore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff90b2ce01dec5304138a6515ff205121c81e50efecfa3d74aaffcee75a61b4e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM72000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db1330a3ce45ee0b0d0ec59ca2fc426001439ef71df42f0dd5e4167be19140a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM71402809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fee4a29681bce42245fa616328ec534239e0af834fd13094586e8c2dc237f5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM71001856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa280d9b8aa464d29776ecfca6b511bdb76cecb20ba2ab09ad82c592373e2de4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM70801153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cc900e227ee27076b98d0d1d3159a83d57d7b097db4de038c8a7d5bddb1599. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM70801154.
Les 100 Plus Beaux Airs de Roberto Alagna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61432c7e3f0b6efeffe509d83af5a6243ddc58a05400932e181f6c35b9412f70. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0203203.
Ave Maria, D.839 - Arr. Jeff Jarratt and Robin Smith
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e00490ecf7a42eb22d75412f00a9c001f3ddee92587fb3013418f073ccfd6f6. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0002597.
L'elisir d'amore / Act II: Una furtiva lagrima
Les pêcheurs de perles, WD 13 / Act I: À cette voix... Je crois entendre encore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe239f4615706572c66e8fc1a2e656f54d659cb9ec332577b0bee3f631cf528b3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f792ae5bb5278bfff2ddbf1b55382ea7fe771d9ead6a5768420d613e8339e6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0103080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7dc0f6a58ed86655906b17495089d0b9563d2ba738ee9c9df618f73d41a7a9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9500381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a23ba0c6efdfb2342611ee1d02ebb5a902d3d93f8491737352f2a33f836f495. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0302236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2d6f58b24de901b503285b3b75cd86ceef461e78475e5d7a4465412dcb6d52. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH4529580100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b64a7ddb067e6c27074ba09c761ce4b9c6335c7b1130738c3fef39c3e9d3519. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9500722.
Andrea Chénier / Act 4: Come un bel dì di maggio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b19e529b515b0ce7d769d20a5b2beb6ac13979845f6374537f66d66934e2e9. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0302226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61432c7e3f0b6efeffe509d83af5a6243ddc58a05400932e181f6c35b9412f70. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0203203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45fc29314486d8851f9eb4bff2df88511114274c91b45d97416dacad15ecbdd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ017400280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e69150defec4ad949a4422a4c1a6f402c263264cfd8a6748ef3de2a111e6bba. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR25F8100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49305e043459a795a0c3730720286f3b97256acfa16c45533f1a4eb62b395ee6. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRPC22303010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725cc703106fd4eb57ef6d7f1873dfc7aabca5947a65cc88bf5eaa8031f02451. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR5E79700050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf5ad6d94f496565d595b82c910dacf052c6b3b8b3c44949468687b2e9897b3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ037600060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56e0568b3fd0cdebcbdea65025449edda06e68191fbd7550f65a1697aa90264. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ029800880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925c1353c9120979ad494c4f865d5ef6d334648212da03b8476ebc7b55f999e6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9KQ2200190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcca21979a2ddf5f9f23e518bd443adc5e86fb2dd2aad7497bcf4f70c0444fd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076820060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e94a062c32a327cde4cfde2d9dca3571089a185f1614063c2a62eea4d87600. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM71101002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a8b511f77fac2b26c45a4700dffbb8d95699c5160484d0c46d05bb099addf4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11503621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45fc29314486d8851f9eb4bff2df88511114274c91b45d97416dacad15ecbdd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ017400280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bb18f3da91620250d5c3936eaebcb81aa603753db9dde6a8cc1e6bd06721f2. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRE770600210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49305e043459a795a0c3730720286f3b97256acfa16c45533f1a4eb62b395ee6. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRPC22303010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f887321c5054cca6e1b9a80b3a0230592e31e934813036f4bc9a4daec248ab. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRE771400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6472cf7dc4221ffd57cddcb080a52fb945bf728a8f52ab9f0333fbaba0be9d59. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM71102073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725cc703106fd4eb57ef6d7f1873dfc7aabca5947a65cc88bf5eaa8031f02451. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR5E79700050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf5ad6d94f496565d595b82c910dacf052c6b3b8b3c44949468687b2e9897b3. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ037600060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56e0568b3fd0cdebcbdea65025449edda06e68191fbd7550f65a1697aa90264. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ029800880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e94a062c32a327cde4cfde2d9dca3571089a185f1614063c2a62eea4d87600. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM71101002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e1376ddcdf1394264466f42538f3f5c16a3c273e70c294db4bac955b093645. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUEM06000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16cd7b6ea4c3117d3cacdcd9183aa3702d6a7045bbbb86c9a5bf3b40dadd917. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X41525330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79e9dcb03897e94feb0e7f22d4ab95cf2f38bdd33ac202a0fd12ffff399ced0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X41525336.
Trisch Trasch Polka, Op. 214 - Arr. for Choir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b38f4944813fe7817f6137647f0a2017bde3ace05e7a1a53290c5b1d025f10. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X41525337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6643719bf1475ca9a3288d9fae57b7707e6f06f6f4ba3cc704fd17a869389ee6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748614.
Oratorio de Noël, BWV 248 : Cantate No. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c702db9d9168c1a0f22803dd0249bba5c2d20f8c139fd04b13e5d97202d44b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbe42a08f78b40d08c49efabece742ae341ecd55c86c74400ef2e3c0de31286. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d57291ed1f69ddeda95bee4244c3e2f14557ca2f95f4d29ee7f28024ad060a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668833ea10f3c729f91f8ec34105d296b4169c71e58bb96fd928eed69b1b6d8f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748618.
Messe du couronnement en ut majeur, KV 317
Choeur et orchestre philharmonique slovaque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77caf12d32db0886622e416c99e0fa5725b031f5e4a8c972ac1a55a41358357. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9809e57a88e65c776e943124ef42bc18bec831c7940b77892494c1d148e7b415. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748620.
Aria : Cantate BWV 51 "Jauchzet Gott in allen Landen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe821e277ecf588ea556022dbf47dd8092549df5dc0808e48715f3bd6670c59c6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84561183da74a783b2b4ab271b95dfd56ba2977cd33a6fba5fd5ff851f3ed0c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4c5263ec242410bf7bea36cd1ce706c588acc39001f8b642460937c5ba5b6e. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dc7ab84a78f9f808046b6addb41cb21f32a26c9233485fe7248cfba4a598ee. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748624.
Vêpres solennelles d'un confesseur : Laudate Dominum en ut majeur, K. 339
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4422300cb22efaa27eff6bc211d03c89164fdc79e12fcdd3f1f8ff051aae9f24. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748625.
Symphonie no. 9 en ré mineur, op. 125 - Avec chœur final sur l'ode à la joie de schiller
Orchestre national de Bordeaux Aquitaine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d17ec0dff6ef2c89804e9aefbf69392700aaf527f98c351a2ed7cfa5b2fd1c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748626.
Choeur national bulgare Svetoslav Obretenov
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d32fdd56657a6885d8d549199862583708a1443d11bacc22af3901b9b0a6df. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed67ea294d2b4b5fbe7d15301dcfef32492554574c5736a333de4da7d805d50. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb35d8a7c4cf7592a2e4f44c00cd22b784da71bc0732b14342318a9cbc99758. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890b04eb1d8823d905e59db2346aed603ef2d404bceceeec904c51e38a27222f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748631.
Requiem, op. 5. hostias : Grande messe des morts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d304135043eb1b75bb0c3357b0f5c53cefd9a1fb11bbc6f45dd9ca00a3a203. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf51766eac34f8fa61bbb7e3d59719706f45567c37a7c575c8a9cc4d96659de5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80748633.