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 0xb6d280df05188eb41036b96631ebce6f90eb61da0b3150d996022d91f67eb692. 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/aa30028a-db5d-4850-9763-6510c1b70a90.json and https://artists.proofprofile.net/proofs/artist/aa30028a-db5d-4850-9763-6510c1b70a90.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 0x6637a7617f323c54b4c43fa4f77f58d463bf51e1bf74d842470e4d1c78238b36. 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/TCABM1377112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef66f926de7b4a2736849102217388008ddd2546a756ba955a971532293f6f93. 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/TCABM1377117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e20136cd66c309ec2eba974ccda453704849752514f4f9d60a019c2b74d583. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:54:00Z), 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/TCABM1377124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e97ee40efb82c1609a1569f5798cbbb7002791eff11c34ba6124dc008b5251a. 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/TCABM1377128.
Miho B'a Keda Den Panchi (feat. Quincy Amasia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a862e102b5707d35bee8aeda1e14ce83857d62f592d9e90c073a61f2d760073. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:40:38Z), 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/TCABR1308005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7b7494ceddc0a9dfaba7c2d22f3e87be1c51d47736f379b02ee37d83bb5b15. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/TCABR1308006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8399573b776885f7bfc492c256b2b78790b425e8975c0571d97d6dbf19f63d9. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TCABR1308011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3021df3ffb6e3aab124eb911d07438640531380568997bfca6a18edcf91219fe. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCABR1308012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c1ea71d30723f0675bd44dfd4b8aa6d57868d3d56f940b7a91fad67ab89daa. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCABR1308015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ac23876e5da1b9f47c9a6cb9be136c4447c23bc56909d2cf2bb5df01816c00. 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/TCACD1501693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69cbefbbce21933c335430302dae9686eee279cdfdab8e3ca86352061970389. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCACD1501700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd584102609d8df10de781a294295582268dd3f6f3d860bcc599e257bb4577f4f. 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/TCACD1501701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1dec3e7bedb6126f56404f20bcbc8e256405d80d2321a93031ac8aca1d8bfef. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/TCACD1501703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f034e7a7f6904ba874f17ee214120c1ffb18c7e04289334ff7209f2a7c0d7a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:26:15Z), 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/TCACD1501707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc310284ffff7968fe4749e691e2ecc1dafc29f032311c274e523006f78b42cd5. 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/TCACD1501712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207ea019963d4c13cf54a2a0bdaecca5f0cf24a1299a531cf4f022d8a7e67d89. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCACU1697023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7edbfba6b4807f852c33c41eab31b269a2c965d0c8995b19f7b7a2d486f7ae5. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:27:08Z), 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/TCACU1697026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5dc2a39cdc31f1ea889dd3eb13c20d12f643e12da3c6ebb3d55207456e00557. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCACW1613640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2afad1ceda0ccb1369f636a8d156ea0b3f2ac1d1abd648a8a50f1ff009300f. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/TCAEL1903908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033130ddafde51303f289585c7d47013dcaa1f913977d9bd6cbcf66a7613d082. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:29:37Z), 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/TCAFR2140537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342c06ba0e27e44b18608fa5e447dff0542f5748219a5b100cf67f749fd937e9. 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/TCAHC2337871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906affe8e88b894e729c98f4e4c538b30c1cdd9f748c20a89bc5853c2ba59799. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/TCAHC2347563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58799da85166ed0e3264da4d1cc8f1d4e20dbce879a8adc52393f40de2590bbd. 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/TCAIW2498621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2672cd39184d9afba1651a440b3020ecb2b6be90ade511de67a8a328367e68. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAJD2413411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa430040aca1485ac1955f5ad6208bf5a1b97e2429c537d6810908722691bd3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAJT2594953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a3df1ae4399379f8751a72065015cdc33f67028f896552367f2de135377441. 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/QT6622536712.