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 0x4d08493aa3cae16b84eb8fb30280b38244325f654dfe49c4745d23c4bad58ca0. 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/d1efe7f0-5c9e-4093-bb61-d679a17265be.json and https://artists.proofprofile.net/proofs/artist/d1efe7f0-5c9e-4093-bb61-d679a17265be.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 0xbee1f6b455d087e561a8f06daa0a531277ba65786b75ad63cca7cd40ce8647ad. 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/USA370565642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef50cf72a13606abfac8e06ed0f2afc3e7b6f0a09ca961c22bfdbf27c5339fb. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USA370565648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabd36a2d988a31c4756a8d4d928906b07fab4dbf15e08d543add6667cd69d93. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/USA370565649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa148818b2a47ac167eae2108030c433fe0617680e0214e30bf0bfa074fb4bb. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/USA370565650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3fd21b0b5b7688e9855b94c0871ff19098629cdc3fb29ad7023d9472b10452. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:04:43Z), 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/USA370565653.
Siriyavi (feat. Elisette Casper & Sooryakumar Mutthalage)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95944dd4495f159c28e7f6462e11ef5494e9916ad5e5a34e29cabe1740340bb1. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/QM4TX1652950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582b6ace81288a80bcac4b315cf4398c06015b5e232c00d0066422b7da8790c1. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:44:16Z), 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/QZK6N2009078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ba5aaf5e6b581dcd038d061da178f7a224bbe4744f06bce1601b5c39ca5a60. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6N2017812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bebff53b6e6428f7023e63366a8833e8e429c8e8205981e230aa7d39abcb42. 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/QZES62176482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0486cb03583971c43cd5d3ebc23c29e4d10a6f4b9686b50e30369605cb9f3a1e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZES62176483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a837e8b232fed1c79ee2ae7a86f9e3358647b1b531c07d8672ad70aa327d131. 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/QZES62176484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c51236678ab55dae1529879420b23b17aca07358c818eae4454ce163fd8a957. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:29:04Z), 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/QZES62176485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e949a907ea03ef3915dd9c2d51d9250391cbc4f51caf182e2d82614d847d67c. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ATR981241794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4b660acf1d33f245ff504c5c4a8b542ac431f61b783f1b8759e94efd93bc16. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ATR981250434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc40cdb53bafdad0acd9e23f08ef2713af44f20011eab82ef1f6fae6871c55df. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:11:25Z), 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/ATR981250435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c10b5d60f822e0c97a956d1a4936b93b37035c7cde291e10694f2bf8f3a2af7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ATR981273773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96d52ad36f97324e68154a5ed87fdee69529feb3e255466e9602b6d8f0026b1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ATR981273774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f32d8f6e2b3ea709d1ed80b9d50f9f2ba096b5e50d178337a1db045c4a5924d. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/ATR981273775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157430b58307cee106319536026a87db0237e253ce35731ff518acc9ed494f07. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USA561228858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc966450b45689b8f9850b8408179f381265006ed5c93328c4adb2d83d4cae394. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ATR981311358.
Greatest Hits Of Centigradz (Compilation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0cdd35a7bfd9c427ba9ac5baf325ebad85fd2b9371e68c38b7c98b461165a2. 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/QM6N22535331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee47c7360e565e48f874ad9efdc6461b91040ae1281f42f2796c40daf4e65c82. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:25:19Z), 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/ATR981342349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747ad0b8e38a8f3ebb662f0668850f31c1e5d5b1c130d66843d4e0cfb313bf26. 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/LKA000002600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659c380770472364df5bcf232025534f5f8f94c2f71a275801dd16a16100b30a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:46:30Z), 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/LKA000010214.