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 0x7c501fccbab2dbe19406c584c813f87e4c3b400669a7e2ede23eaea672ea7332. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e56417be-86aa-4787-98c8-e97be0c2e377.json and https://artists.proofprofile.net/proofs/artist/e56417be-86aa-4787-98c8-e97be0c2e377.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 0x069e54ada6fc69d7abe06dbdddfab9a3994fc081b23ddb8e3971d1b8ee8f9d35. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:28:59Z), 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/USVIC0012206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bdbcc8958a85395626b14aa8e7f1fc92ebb48e322d35a145c6df13aa8bab86. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/USVIC0012208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0dbabc0da08d57cfbc50628fd0f0dc31dc876bcb984f3e9c8af07260b0e2c9c. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USVIC0012210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc6621d63ef94e8a95dd2cedcf02da3f7c734f25f67c9b6274e4b5de60c383d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USVIC0012212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd43fe31e7e279910d1e4c22dbf75d71bc7228385fd85b2bfb1a16700d76f9b0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USVIC0012213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296ce553159297d0a25bacaf4771584f1e7e337f8c31072347f5a5b1ac88fce6. 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/USVIC0012214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715828af3d6e471048c427fa052a0065df03df8886af365704aaa8e4fcf37999. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/USVIC0321502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7eacdcd475993b5cfb108be12561b9d9e8521a355dcd88401b11e49fa2c0d8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USVIC0321504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9294e5a81ef66cb3b249779d1d2b3c84574a80118aff2bec5d574c29bee10e8d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USVIC0321505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d439c35c7bdfcd25726a32fd58c749ed05ed4cc8987a1cfb61686e9a0775091. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:15:46Z), 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/USVIC0321506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a51b9852466c95662d32e3544e31676ca49c45ee293ae65c0371aee66c01983. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USVIC0321507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff193ddc03783fca0710954104620d5b47fff47bd786ae5caebc806805e08bd2. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:51:21Z), 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/USVIC0321508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f45b444d58bcf89b4816a53df4ed577f4b9542f278de426a20153d2a3dfd046. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USVIC0321510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef45feba9ed4662c6be5c2365f094aed6e032af01ef23c60f1a65afe13ff533. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USVIC0321512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96b72854655487aeff68877f5ebfafe7b8fcf7f320c18f97b618497c2b85657. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:03:22Z), 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/USVIC0321513.
Catch 22 Live (At The Downtown, Farmingdale, NY / August 30, 2004)
Lamont's Lament - Live At The Downtown, Farmingdale, NY / 8-30-2004
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c42807bfb9225877e7d4f340e21722f2939dee058bc2ca6ab3599095a7c3960. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USVIC0423902.
9mm And A 3 Piece Suit - Live At The Downtown, Farmingdale, NY / 8-30-2004
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9be69240bc446038298b39c1746993dbcd2a32d59119a9ec1c08cfaf70b27b5. 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/USVIC0423911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365fd476ce305d18273d1dffd64384797afa3c2db52a80317da4447165bd1f07. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USVIC0629202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9b1a5e001961bffe6db9d5ff6a4c8ab794286a808bc03f531e32def7746bad. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USVIC0629204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a57105f861009404bbc2d12e6bf9cfe3d7dc43b343a142b121eefb00797b52. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USVIC0629206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d83cdce7afefee84fbc469eaba39d8e3f1deaa120abee53b87a0ebb405ea1d. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/USVIC0629207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc77400551424ebd4b44b8692c0dbdca0b146bb276af45b9e963ba3a91ffec58. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:43:28Z), 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/USVIC0629208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d5b7afe385e78f54b3430fae6288d47d319c5f86aa8e85fae8bdbcf09be148. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USVIC0629209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6690f61b8a0817303946fb77873907dc96735f258edb2aec1259ed4b937ad1d. 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/USVIC0629210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a93de9c1f58080736b8381b63de74632d886ff5286507baaa36622317bc3697. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USVIC0117201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47688dbc401849ecbb5b2d1689aeada20c92f66bfa2e89792e2f4fd6a7c3c0db. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/USVIC0117202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e487bf74155d7b369c9ee223c7942946b66963a982eaad2b7c63f8416d7466. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USVIC0117203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed13714147f56664fe77aa33b42a9c72e1661a8e3ab11ada638eb1a8bace37a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USVIC0117204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf81f2adedd5c340732ab2ae678227380d08b94ce863af0419b3f47e61826446. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:10:16Z), 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/USVIC0117206.