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 0x4c9e4836c4105010f4afaacefb7a1c619dcfbc9c62bbb9a4fdc325edbd671ef0. 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/3c166542-0a18-43bf-ae98-d9194c07ebcd.json and https://artists.proofprofile.net/proofs/artist/3c166542-0a18-43bf-ae98-d9194c07ebcd.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 0xec7b4aca1d314af3720bb4531f15e97e1b91ce70787a33ff500ba756582eb089. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DKS681900403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a56361a7ec6b3489968a2cae1c6727833a6d9ab0666a282c0fd39159e69930. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:00:10Z), 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/QM4TW2005433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f930891517fdc8b9800d3e9ea059696c4717073e1831199b61dd1c38b3bd51b. 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/FRDX62303370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f930891517fdc8b9800d3e9ea059696c4717073e1831199b61dd1c38b3bd51b. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FRDX62303370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c936168544bea3a2b9fa57a20553554b83a7b71fc6c59b8cb7741c5063735be. 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/FRDX62303390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7527446f859b6526bdd458a9b7d50b1d2647f33a95531aa4aa8727175387ae95. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:57:13Z), 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/FRDX62303400.
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 0x33d65c6328bf6f90e8341bed1b47ac29654ca6c0ec9d08f53d44ea97e03599ca. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/FRDX62303380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c96f1386a32a10d86f5a5d5f0a79ab44d2322c133e94f1d59c6c561da922f86. 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/NLCK42405964.
Nasty Beach Party - Stef de Haan Dark Speed House Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb7fe19b6617bb968199be783bd7235c196e74034e2180d593225101959d87f. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/NLCK42405965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab37f51ede6a849bbb6df6975ea135420732d1ae61e9095b9fadb005b6a914dc. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:55:43Z), 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/DE1FB2400363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2179b301a16c6ecb06d186e5d4c09453a9c4b61faf8fc9ad840027b1fd259e2. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/NLCK42514337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2794df4b799cdee33276dcb75facb5b79de62dc8cec45cd3bc0e04096f1fcbe6. 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/NLCK42514338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d17a0fb0e3b4a9f942a0b2cfa9154ca68e53b9e3103a68a81bb3826e7b7dfbc. 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/NLCK41076884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3935bb02d75c9b854facddc59ded3cf5bc6940a3cd59141525cd8de7804d8ab4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZS642330821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd689c0d10a2c6c20ba007392ad073c0c9647c1a458ff2e2459966eacfa64f418. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEPI82310522.
I Am Here Now, When Will You Be Here Again?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dc14b71259439570b582117c6c1b7622e143093612a7a670a4199512f5bf1e. 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/GBHLW2302049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dab2d5a514589eeae01d8d109134954c330c071d4cdf1db1d1ba723be46fe36. 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/DGA062255342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161747bde70072e350ee9b5e16369351ca9ef8092c489502e968777926a024b6. 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/DEZC62284589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923d3b64d87dc3683d482e6fe2e9424f219638ce4e1bfceb55dca05bf7611da4. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DKS682000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cb186f4bb2a674dfb7e6a9668cc05ace192ae46d2b7ad879f755f5af4d745f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLCK42236207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d65d7a9c0359d682831800256ad22f9475a251c983f32b17d19231d4d86e17c. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/DEH742409757.