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 0xf47f3d2e3a175c388a92e25a8b2166f136de73b6ddd5350365f418d495520a96. 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/eb8060df-c336-4050-80d2-39273e5bfdc3.json and https://artists.proofprofile.net/proofs/artist/eb8060df-c336-4050-80d2-39273e5bfdc3.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 0x0adf4f2c9925181f852783ab9f9421cc6041fe85d40a3b069515df3e08856c93. 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/GBMA22133323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5a4831c29fce50a00d7e57250450617a085c7d2270ddd7374ef5c819ea7133. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:00:44Z), 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/FR96X2165513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee3c82c4f26f117827b8c53e98dfd0abc31021cd257efdc99f916587f71c6d6. 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/GBRKQ2155844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3165d516c26c94d1db34837ff0b86b5920d27bd30540812f0da86241d15260dc. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:33:14Z), 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/QZ5FN2224347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a1bd276167065670de5dd71fc9a9b070345cd3a806e10ec94fb8b9b03a1a77. 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/QZ5FN2224348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bcd2cc5a13a99cae4b12a8767778d0ffe9cf5aac4a74c0c8d9ca900b28e74d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZTRX2239098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1dde56a1dced851b9e528e2655e40b418c98c9ba91d095e6b7d0369aec91cb9. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/UKW3Z2301316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf231344cfe1ec2848d0af5ae2daa4ec0548690a5d978e444333502fd41af48a6. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:55:33Z), 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/UKW3Z2301315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1dde56a1dced851b9e528e2655e40b418c98c9ba91d095e6b7d0369aec91cb9. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:08:27Z), 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/UKW3Z2301316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba376d432b6cba04baaebd7f0134fd8b5d6200f1c2749a48efbe4cdaa4615c35. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/UKW3Z2301317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2a7bfd8ef12e22d1ee50e912294daf982a3561691e23f2029d2adfd061ee52. 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/QMFME2388076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe938d1832c119c2a4fe6c5451588230f70b7d1f28f8b9f3203f472b6a21313fc. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QM4TW2432949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a130bb03ada8025794f2b4f05e7447c5cffc23df4322a27ce0ff257aa96742a. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:06:47Z), 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/UKW3Z2403125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc6ee625a2108927710c8634c6530f89fa0c3a2d72d247ff21d2d368dcac1b3. 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/UKW3Z2403128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91979581e6a3f738617ade1d36c7b339a8c9e6d8925e091823fe5ad7c940337. 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/GBWUL2564377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6422234077696ab6bfbf4ec9ac5f068cafba772ac2e7b2d51e8ebdac743d7e. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/GBWUL2564370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cc80e1566b69d5a85d0feb8c374dadcc5e2d00d013b54e3b2d27d82ec757ae. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:52:31Z), 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/GBWUL2564396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91979581e6a3f738617ade1d36c7b339a8c9e6d8925e091823fe5ad7c940337. 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/GBWUL2564377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bcd2cc5a13a99cae4b12a8767778d0ffe9cf5aac4a74c0c8d9ca900b28e74d. 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/QZTRX2239098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee3c82c4f26f117827b8c53e98dfd0abc31021cd257efdc99f916587f71c6d6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBRKQ2155844.
Aemeralds presents: Library Aesthetics, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed48dca0ffc4994df2d45acf7aae1c149941d290a2c7586f8d519c9b8ad200a3. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:39:14Z), 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/QMFME2307023.