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 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 0x0f284a2b8c8a5005b94935b0f7d15cf99c31ec895701f6b2b0037b1a0e9878a5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d51f6f1-1cfc-4ef9-b521-4c9a263c92b6.json and https://artists.proofprofile.net/proofs/artist/9d51f6f1-1cfc-4ef9-b521-4c9a263c92b6.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 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 0xbb12d50ea3e2f8dcdb87e58a6ad108af6ccc7d904c1901dc867024a10e264d0c. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/GBSMU3251487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5838a42456c1b6896cd508221c11675981a22fb481ef6818073a5898ddeaaa1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBSMU3209282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fd837731dbb43e3fa5e615aadf2889371d01859371a092907d1aad3b653823. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBSMU3499526.
Never Look Back (feat. George R. Gaitanos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba6b6d52f0729174993a929520b6a73d08dc172350f7c6bad7e91722ade6a1d. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/GBSMU6084042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b43abd15d40b29806e8ca798898000a227f9ac4e11dada4c5c2f21f8295217d. 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/QZ5FN2030538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16acbfd1a683a54fe6e4e0ad85f4f67aec1a8ae87dcedce1d842299f0297635. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ5FN2068870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f997caa7e6a8972bff27adaa019f6b99a56aa9f380349492d138b724792ba04. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/USLZJ2020558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a66be6c3e1cd3fd2518964ddcac9847f0d79e64ebaace180d0bbe0be16597c. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/USLZJ2027695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c939a58be793ea39de768529c359923bf5b6927e174553d348653b968cfc77. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USLZJ2079228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533446439c38c7abd69cdd3830a10c72a8b4b2ef5cae01e90ae26631aa86f177. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/GX4R52160586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f86ecd98ded1bf8cb85051f27d2da6123fb5622a68e9a9f2b62c7564d489dd8. 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/GBSMU4700159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509e36bfc2f968eff9ec905957ab2f10b2e858f54e4168237febab21b1615f8f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSMU5019911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d29025206f7d43b686bb802dc4333d1b9ea03aa6741407184cdb78347a5ceb. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRX281555522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c09894cffd159d562b554dd3e5345853b649fa5688b298fbba192afad800d4. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/FRX281555523.