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 0x60e5e32b59e406c9e76fe79daf0c5999e0074cf63b6930fc68a42386bae3ba65. 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/ce430d1e-673e-4745-ac2f-5d8f95b8e739.json and https://artists.proofprofile.net/proofs/artist/ce430d1e-673e-4745-ac2f-5d8f95b8e739.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 0x58829cc4c1a8f5d6544f8f33ef3b026ec14c54ab1944a81ebc9d03ce386f3aba. 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/USUYG1528602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f94ee83fd80800f31be6013e83398491f003c20968c1646a142e6336c69d8af. 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/USUYG1451954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d7935d426f47d1321e269a8620f6029e5b3d929c3e2a92cbe7dbf55a8539e2. 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/USUYG1444450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8462b820962c27af57da1f0410057e850ccd18500b6c8794063fc142f6c69c27. 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/USUYG1444452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a91f5da6a5ae94713a678f84c1ca96ed947f4a829b8177fc32503d3e19236d. 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/USUYG1444453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c59beb25e070b1cef8e75576aa3d22f19572e5c84459d1366a82703ee96348. 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/USUYG1444454.
SURVIVAL OF THE FITTEST (feat. Ron Suno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d193a6076800063df694c3149190dbb1ec2ec547cd051529e86277a968c5ee. 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/USUYG1444456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a64b1c83491873fa9048c930f97df668d147b8159bb93b73e6c02e748a0329. 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/USUYG1427552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8425fd983e3df0d84af1cffec0fb192981e68d26a250e56c399b631416ae237. 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/USUYG1465736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483bb38e4ff5ceee798e86f09da580a0e78b9c1504af7a616978ea3e3eccbe61. 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/USUYG1423551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85da026a7870b0f56575cc6dcd34b2dc66d31db2b11c3080c96e5eedb3077552. 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/USUYG1366854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace87433572d586519c6f5c34e369bbb23a2afe3df68fb0517455cabae8861b3. 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/USUYG1546322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146d611b0800af89fe9d4aa084e5b9015991b1502a7348630a4c1111db1458d3. 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/USUYG1546323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed63cce1818b79c35e2e69329a1bf898b40145fa71fe2150342223812675ac6f. 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/USUYG1546324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fb3d0c45e6fd9324d8dcd0d72437ce0e54dbb4448d1365bc3dce00dd962318. 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/USUYG1546325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b993707f617df81672dfbe8441340b0dc1d2f2f84860c515e221ec664493732. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:34:03Z), 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/USUYG1546326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe874f402721ac08e4bedb8927a55578990b5e067e0987940e515667695c1253f. 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/USUYG1489826.
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 0xaca0ef9a2c67dfcb3c41919bf47c34844af7216a8a60344f2614167eb0d72a4d. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USLD91736099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf877f03ef21ed8567da414527b48cc2d86502d7e962419e9c9dd7daefe3be2ed. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USUYG1546327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eea69d368e0b0e1e13d56768f7ce61dbfe430363847f95f01df919702cf3f91. 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/USUYG1546328.