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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa10da6e5108cd5c4d9067807f18799fb7404f4d02b02d053a8864565e2dae0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf1a18b3-d3e0-4ca6-9fd8-42a8779c2834.json and https://artists.proofprofile.net/proofs/artist/bf1a18b3-d3e0-4ca6-9fd8-42a8779c2834.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc508b775ec30611595d8ce339ce5c989e8a7f51c84b68bffe84c715807f2bde. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:01:58Z), 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/TCAFS2161901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5221c83b1ee53b646bc8727c1b55abb0afa99ec73c0f68e755f6e4e1c8b6a77. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:09:07Z), 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/TCAFW2139210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a86fedd29524d59b7e7c385cf04ab0c8bd07c12cf632c5adf34ac92ed92e3fb. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/TCAFW2139234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63784570484c342d7320388ef24f0de82583d8c4653c772e1afbbe51f826eef1. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/TCAFW2139240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3260ffa1720b8424ca8e1755edbd57e0427a6b8083506aeef08a4d02df9276e4. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/TCAGJ2256175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b6faab1b1f2eb3cfd56ca743c88776ab107a33ddf5d72713989e537a7af14a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZK6K2389542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e1554841ff589430deadbdb05708d47f02d85afa08f7fcdd884f89f734f974. 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/QZTB42310711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ac5b61105c86b2c1d5323baa575e0f3ae201b3eb645069a2b0ffa7d8ec1cf2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZTB42310712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be6eed117b0c5ecac04ae5f3c3433d4e590723367ae17dda2410eab76100de5. 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/QZTB42310713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdeb16cf707ed8af9090e03769e29dee0d5ba6aaf5e14fdd7f1622f158626ef. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTAX2347674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc970698d717d74136d2a282cf5d37e6008ecf417a10e2482a64a0ee27fa2c0. 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/QZTB42310715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b884efef0f398de077397c92b391b4119e94b501ed611eece0be3a8dd63de5b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTB42310716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b038164448b445b8fac5d535ccc0c168b79129fe97ded3efc65820700688ab4. 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/QZNWY2365103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc939618ff6f2cd0519f8841e186aa4a9f06e3a7fbe0f1982f947863fe2c7d2bf. 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/QZTB42310717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadac8e536f60f00053cfcfd45a437225e99db118ff7e4b4fe56fcd846403ff5. 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/QZTB42310718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec8a568177ba874ae3504e3fd04bf0be762b94ec2d2254ac3fa78794f737f3f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZTB42310719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5372242e557605248fd895be9bcde9d9582d20ae23b59bd2a31b41f20ca8f45a. 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/QZTB42310720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a9a3598b78414945de1477a60e0e475abb64e80f40c95b98a3d60bebe76ba2. 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/QZTB42310721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1c71ab255f384f79385a6d484ec52bf94789e26fdc9e1bd849261b03accd5f. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZK6J2498286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5b9edc1a6ee67a99b63cc7b7296e8aa3990c87c537ad0d1ac79fd69ba2304b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZK6J2498287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447b45b7d3b3b3a083ac19136228f40665064da9b92ebefc842c80176872252a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZK6J2498288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5d74d858d6c47d865566acb9ae64905cad2539f5b2d6e3e67ea44a0cbb9b41. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:24:56Z), 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/QZK6J2498289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb897b19312fa19f711b4c636f7d4541098d4c1183dce22b9ee3cb9a69c5067. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZK6J2498291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362c5f6fe512aef5cd4d26151a4d1a96a2c61c5086583dd73cc72c3b99df50fb. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZK6J2498292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513555e7e4e3dec2c7343294f20884cb8ac8488664737e55de551394367cee75. 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/QZK6J2498293.
SOMETHING ROTTEN! live on friday the 13th
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c16ae6920d44b440bc016f0d0ab4e8b92c3563a0f848d638f39c837d21b646. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:00:39Z), 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/QZZ7P2424046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b2dd6678c367f83de380c9c4467bc021a985325a0ac9ab2604d5c0f3246f86. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ7P2424048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520d629f16130b35b61c83603c6137ef072373d0a18eced20a6e6582b3a19e19. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZZ7P2424050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a00dff07c7e240b3228894cb760f74ddbc28f6b43e10234d239b79b1b44c5f7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZZ7P2424051.
SPONTANEOUS HUMAN COMBUSTION! live at the recital
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7a97cdd570d568599cdf695c5e53924473db83e54d872282b60efa58062de7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZZ7P2424053.
SNUFF / DECOMPOSITION OVERTURE! live at the recital
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5565cf674907f5362c7484015df155ce6d223dedb02e0a9d3bb50d8fea63aa. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:32:32Z), 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/QZZ7P2424055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0abee75461b486e07465d14785476e9434bc9cda05c17cb723b9a5edc380f0. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QZHNC2576967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0fa4595acd4b74db2e9dc883ec52653d5aaf4069320ca5c982074de74c6161. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZMER2597102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0be8f995aff379064627a7ddddb04a00907946f869a471587882b5e69966d4c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:20:37Z), 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/QZMER2597103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb91f4c63a131719f165088c0d7b8626cea600eab15eb7c4aef34cfd609c646. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:06:21Z), 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/QZMER2597104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859c305f98f17ca8a13dc51660ac8f9a13ef29594ce189fbfcca62e17590b4d0. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZMER2597105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4b03b8a8def82807bdc0c49bdcdc21a06a2ac5ef4439b7bb8e445ce187b085. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:47:34Z), 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/QZMER2597106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff1678f23a14a4383a45206a0db3de1cc2a416c29f026e24c70bb6256e4d839. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZMER2597107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72c61b9212622ec28fa24bcd67295fc010c601bb7e1331fad058d43b7ba803d. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZMER2597108.