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 0x36d5f006d75ffb50e884f275ac462ad3e78febeeb40279d1e545aae57343d5cc. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8414a02-7e1a-4a75-82eb-307a78fa2465.json and https://artists.proofprofile.net/proofs/artist/a8414a02-7e1a-4a75-82eb-307a78fa2465.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 0xfbf5dc120ba7afbb6e970ed0ebeae5e3fd7ab8618e8501cf0ad9dff28c910ef7. 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/TCAEI1932867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b62eb2f3989d899e428d274522ca17f5f75edff6478d3f1d98fef9d5fbec75. 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/TCAEI1932886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65457ae87b77f9d476890fc17a08ad5b3421095b59c9c6ea11e3e786aa521f44. 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/TCAEI1932902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7e6ef81c1b3daedd213be0269f8cb52cd50d060c515f6e373dcc9aad949ce9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAEI1932924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba44f278b00abd64752bca4bb393d8cfa3c94d3512060ce1172190de399354a3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAEI1932946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576a2899578018b9caec924e877886700dcfd5d6b7e99fd098942a2c2ff5ee57. 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/TCAEI1932949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db122fc8cd2feb0afd1bc599491104941ba539aaed3e7e56352a70f7cf34fd3. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/TCAEI1932827.
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 0xcdc915e3adf84c033b2d2dfef227f8116811f8005c718c36ce20855367deb402. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TCAEI1932846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7950636b6c7c527d4c395cc4bbcf3e5c7ce2085ff767f917facb67df4894b3. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/TCAEI1932909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99eefdfa6d0f07ff41a164c2a0e083726a7773a7c4db42534c58b518c19feecb. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/TCAEI1932920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581b6306448f1c79cd46b84c0cf0b0b26844bd52d89423befad8d4181089c709. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCAEI1932927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4462a08c6f5355c7b0a9b3ea5ae2f4fb0f740cd63ccba7b69b0d4add58b536. 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/TCAEI1932938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9917a626c7a6b863625b794f55de07d166a6dabc000e31d80d005d453f5cf9f. 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/TCAGR2257051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27904994be3c5dc44b9920e266f7c76fdd7c76e10437603e8f4e0b0ea2f9654. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCAGR2256989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4044b83b84109144c333648d63123ea345e2fda5787dcfa16c4a8a7a0654bc46. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TCAGR2257013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829772a99d2ecf85ec9337f9b4533e283c881637030d7eea2cf1152ddf386c0f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCAGR2257040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de4effd96afc7ec8c596ba0904e22d6ec9013ec5a03c6ecdb08556ee7d716e6. 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/TCAHP2329935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e08d1c89669c4547705b3b5f6d46a8cd3d786db16c44b179134f87ff5352a0. 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/TCAHU2419435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe506c61e9ebbacc366da2ce050befecaa39a095a2fce4e679c78de689b47cb55. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USL4R2367579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f483671be5b595b7861090400f068bed5d899003f437250a924de5a2ed03c8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZFZ42241965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ee8f19d77b31fd74a37f713b1132bbf56a07ef6e2649421d881d96e7b23cc7. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TZA1X2300380.
SPARKS SYNTAX: An imPOSSIBLE Journey of a Music lover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3a34023e96afaecae069a3374d9ec1951044f2defd5698e6944f9ab2799e4c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AU3UG2300047.