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 0x2750035187cfaeda8e556cc1eabdd0029cba884cd13840313fd7e3472f52cf3d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa4579ff-7c2f-43fb-adfe-089057693865.json and https://artists.proofprofile.net/proofs/artist/fa4579ff-7c2f-43fb-adfe-089057693865.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 0x16782cd76fc5bd3a1d72b0261555846da039f042c49dd68f834239ec07839ae3. 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/MYVM12400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4af87cdd857f525e162ba28d1b88ac74a6b11f33edeeb52798dbe69d77db77. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MYVM12400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55c12bf02f3fbe955654c79ed748b0214fae5d17c1e4317f24ddc026a7f4ddd. 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/MYVM12000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bd7cbac3b3a1d91797650d9e49843c8e1c08612346a4b919618ad6902b920a. 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/MYVM11900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89094f0a7840fbadec368800a226ada0d7bd83553d54804a3370ad862a95dd15. 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/MYVM11900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29046a41582878ff3ee96bf19b69fa7a1a2416dc2311339b4269c8ae06e0062c. 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/MYVM11800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ad56782ce441f59ca88380ca868baca2a9e18726ee5f1e4cbe38dd5613a70f. 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/MYVM11900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8486a21fb2f13d7395d5fea40b9e3de8971a1f91a19f1919f4bac4321a26d9b6. 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/MYVM11800063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca051185fdd69471ca21628ac6755709a00d3386b3ffd197aa5820d98db775d9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MYVM11800058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e4bf96b6719e00fea2eac78311f54720fa36e7ae0d07a9c679a717f0520078. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/MYVM11800052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2b8f0bdbe267ce92c489e7f9b0958b7d9ea28c368c2d8b65446cc93c674dab. 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/MYVM11800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfdc5ab99b1860189ae2e9dc8fac26ba07dd77123d17c747d614da31acf6079. 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/MYVM11700189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b94a88886f4cd1a46c212715d0315745330e38580ffec2f38c257234ab69a84. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/MYVM11700050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd805eaea37bfc485e2eea21a12ca2c49b58f925b07463b0c9cf17eca9e4e3e0c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MYUS11800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100864811719198ad0b577bab04ae2454681ddeb98eb7245c2cb4b2516389a62. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MYUS11800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ba7cddad3fdbf2664ff92862491742167642bbfb15e489f9f24a60c80ccb89. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MYUS11800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4d0b3fc892c853d8f8c3cc97776b7e8807465d23b1fba6e903629975302693. 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/MYUS11900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b24c5f036ff2b0de37e7957b24a32021b310dbac889f8e5a53e9f3711a7b388. 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/MYVM12400190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1054d2d369bd2e02c4c23fd903cf831f53014211a7ffd4f42de3ed764e0e7b7. 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/MYVM12500063.