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 0x3890df0c9282100d93d0ca576d3ad3c385c74b2aa8564818df89c84d8f7ad5c7. 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/00fc1210-1204-4ee1-8f37-5fa2318b9a0e.json and https://artists.proofprofile.net/proofs/artist/00fc1210-1204-4ee1-8f37-5fa2318b9a0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
What Lies Beyond / Cast Away / Shut Your Eyes
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 0x97e8c097d5db60db654b095fa36be4f0a664f17bf6a77f7541b552d5226af19f. 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/GBSCL2095035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aee604803502958cfb2a1acfc583b95570f5f3670fc2a5142c2d9b019d80437. 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/GBSCL2095036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c5e327453106304967945b803ef92edeeceb63b8f0c6c0aadf85e7bd9cd4cb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBSCL2095038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6abcc5848fd55467dbd2234266b507f257c0ff196f9a125952047db97008c8. 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/GBSCL2095039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6769a789b9c7fc94b80073ac48f824a800576a4b55f0525a5959aa0b1f71382. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBSCL2095040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdc35b34ffa50e7b50764b89398497e80bdb906b1bbce7ee1f1ecd11d692181. 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/GBSCL2095043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837ba18168f3d68b27d1ea92027b76689c41f9ac888eba89c553f967a7061c5b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBSCL2095045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4adafd2eac2bcf6a6e36617675fb67f388c5f9387b98fe0df697152e9f05faf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBSCL2095046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77595e1299e66201b7f81a3cc67c942d069bc1e299872c2a83ef9a0cf1f9cb4. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/GBSCL2095047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbe659ed3aaeab2df7df784915daa5910b32e34df26ddf386ce7e98ad48a1d5. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/GBSCL2095048.
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 0x9c709650ef85527466f9afd9fe2d5b70e001b05d213d94319405136dd66e7c12. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:35:38Z), 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/US83Z2120647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c87d02e1da333b64c36789f0c8c68703dca6876da2ff20d7b7228ef53e5a05c. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/UKACT2110576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a74ec23031d61596120efb687712e49458d872b2496e00d6a87c3ef1dede0a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/US83Z2231665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767ef0ccc24b5c09187caaeedd85591c17b6a6fa1a3c97d4bb1dd8b66ea322e6. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QM6N22350366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d03d842a92b97d5eafe1d8c738f0b32e37a2b395f87b7b3e84edb4d4000581. 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/QZTV32354447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842ce3baee1ddd8e7f543d275ae2529475ad2d1fbabad28cd46c86c0a45c4c6b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZTV32354482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e2aceb2c780e04d579b40409de8ca2aaafda5c53fe88ae8d1f30f4a4e915c4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZZ8A2397614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d4521c18282a0ce0954ebce43f36c0e5aa2004d46f047bb70ac0798132ee7b. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USLZJ2438585.
Placebo / Angel Stab / I Only Really Care About Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d580279c061c7e65c4772946335df68c2abc74a4caed3018d0ed1f267609b9e. 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/QZZ8A2486616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf0e049007590a5ace4b0a83ed02d99b4fd02ce6e552c3079d7df0d146134c8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZZ8A2486621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a95641cc84ce1b0bb7df4ca7f987a38efa091dcc253da0552877e091bd74aa. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZWV32535991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0d6b22f4fdf84c24dd8f91d22455a4a19b3ff160d7ab625006fbbd67810ab2. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZWV32535993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb59da0d64623ba2bd59a1c9c3c987cdfe0ace624354bd923ca56e7cb8fa1ad. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZWV32535995.
Balance presents Sunsetstrip (Unmixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3537d46e189399ccd1e7239eec3a2e793ba0adf7541c8453d0d805d1d574b43. 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/AUXN21919098.
Balance presents Sunsetstrip (Mixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d7a076f2d17aa5b0d74314b943bb85eeaa7d6707db3d2bf35cad450e12b269. 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/AUXN21919063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7ba68fc90de6041d844b9a22f63e5626490f7aa52ca48fea5d8a609a814a2f. 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/AUXN21919064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb088e7ed64d709ead8191a1857a0d25748d28ad315a8870a3276aa3b098f28. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/AUXN21919097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36378f6758294770d5921252996482218e34ea6ddf7c554369146086002fab5b. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/US83Z2469636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1920b55422592d8f9757f2a8cafa17b0a4d1f01773a32ed52f4d9b31896c2e2. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/US83Z2126932.