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 0xd0e8a54b2ff70f0c4c58d8e52f2612da7f39fc3db977acf1e47a9d391e756bfd. 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/fa2e1f67-951b-45d2-906d-658304ba9290.json and https://artists.proofprofile.net/proofs/artist/fa2e1f67-951b-45d2-906d-658304ba9290.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 0x5fe231617bdd0f6703a312cbd8c7dfe3f0305735ca46a1c581e269a42e395231. 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/USDHM1621841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912d6da79564282d09639aeea2c7d52acb546bf0e0791eb15c0f2ef4f2576221. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USDHM1621844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1190deb63fb9dfdd2ab800876b82f78e1c6227ae6ba486224f361b5abdfc1892. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USDHM1621845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea021656736ce742f689a6a6be452b35f235ddd090c2cfdc28670ebec7ed22e7. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:24:28Z), 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/USDHM1621847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14db855330bbc0558034c7f759cb97b716bded8a7ff2569c70f68dfb76f70f6d. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USDHM1621848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc3c702957866470926ec16f674b0d2f0dbb2c64b2a09309e1b63a9ff75f143. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZDA61865687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf97a1381ab36c73d381d7d091a1dffac56ce63218698323472c6a1cfd1534b. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZDA61865690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809228b47ecf278c4e5fd51a7d226a7674f4769422585725f8e91aa2fd641277. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZDA61865691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b156e6d2138ff541d41be4e63173da2a4107b295b91f69374654986907eb467. 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/USDHM1800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94503eb9a111a2f12221e8ebd7c7d1e3c3d563a14d7049ebb56817f0171a5b0. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:38:09Z), 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/QM4DW1856436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84503e1dc740cd2e78dc7b2c2c1b6ae2cba7cba3dbea34a791cc6404d012fa7. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:56:40Z), 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/QZDA61865692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3599d325763feb8d4a6bb4a48c2c153bed3cefe36ce467c92e214a2e3b7e594. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:29:43Z), 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/QZDA61906087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541b37ecc6a3da31c09ae4d771162b1e31f83b1f10007f2b60892b624f58a29c. 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/USC4R2110190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1159029e977b1f768f2e708fa30dc3473cb3ce7bee446c3ce856f1a2c0ecddb1. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USC4R2110195.
Ceramic Animal - Jam in the Van (Live Session, Austin, TX 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011d063bb7626ee5b4fb409520ea2407e849d9bb92294df4e172fd75ec21542e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZTBF2433825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac97a90a101d1bb39a643cd6d889e51cd66675a9893c6a37c7fc11c0e7a6e78. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZTB62430454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974378ae2d6cd453128f77f36098ff05cc31524eaae0dc729a07e5c9d516dd64. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZRP42429081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d89e3c1f6331447c5d64a35f17df9bff07b522fb9ac473844237a65bd81a7b. 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/QZZ792418521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce9ebee405980752ac088c24433118db3a78b2d8414ff5c4439df87b3eef471. 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/QZZ792418522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c0336bb591abdf4586a5aad237b39750dbb067937fce5f3dbb6fb64dbf905a. 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/QZZ792418523.