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 0xaa53dbdb85b403a576e81da29ab61d570dac1fefa7e7f4772256eea556353f20. 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/0c471c34-ed9f-4e04-afa2-5f8d5e068891.json and https://artists.proofprofile.net/proofs/artist/0c471c34-ed9f-4e04-afa2-5f8d5e068891.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 0xd028007e85c9379bae46bb21735142361a48e5c668d856b2ef394e7ad2a07bb6. 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/TWU712202519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6afeb09ab5399bedf885a330d77da62cb6e6de555a605494659912cd3dfa60. 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/TWU712202513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b862e2642fcdf38f1ab8a0b9592212708450ca243807b0920c41572a2940853. 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/TWU712202506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cfc5a3749af92693321febe608514614101bc0b1ef7cac862e85aaebdcc420. 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/TWU712202508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cd38f11ced4bf4c18e245bd176067b0bedefccea10b14e03a118085bf08b19. 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/TWU712202517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5150d708a1c8ec644c34fec0c6d98c34ce2736101601d3e3601e677dcc09c1. 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/TWU712202510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ab2c51d112de6a80bb86866ada5ffa2ce7c38107b6335e2ca2b3c1ea42e032. 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/TWU712202509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12a1c095c793c7c96fac1f6a3373bec4c8ec0a4cc285dd57cb2c009d2db4c47. 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/TWU712202520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc063cfcb85ae967403133122a45ef28476be09ecac16c24b653018c9a11dbd. 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/TWU712202507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed377e7409742c0508d2b5323adbe273664e5de644f4ac1666266e0356f4afa. 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/TWU712202512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8846e5398402f5f54ab377d710de667ed1ee8cf03cbadc6eef45145f64885779. 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/TWU712202514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf68fd9eb941c9733748bd38ffee395326bbb8001712129546fa183d6f634ce2. 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/TWU712202518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34966e246d5f73d90c0c4943704ff15f9a6cf1d0ceab065a2329fdcb7b0a9fd. 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/TWU712202521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa956e38ba63dd59c3c1c7b2c28eafea8a6d814d65a645d6de2da27717da8ee79. 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/TWU712202522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1991a50044a99a5c2ed5696e72c175c2e70ae6e4bae0a60a08909fc6deb84f9. 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/TWU712202516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32f15042ae9cad4451dcd4e30eb1f25a6714875391c7b0455ab939f85060d76. 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/TWU712202511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e62a8c80e8c33660b20a0dd17718aa41a8e629db1131de10ffa9cb9c2b446a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWU712304637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0f009e2a580baa2b3da6448f0e0673a748f019507764fda00b1882cce1d640. 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/TWU712301567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c1e7c6a4e948daa69e4631f8153442f20e4d6184e5be892dfa3d69475f5651. 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/TWU712102267.
New World: Aeternum (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1558646596a5f5e72b22d2ce1d0fb726231584ea10d966985a2b0d725ee2866. 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/QZWFN2468320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e8b4d36a55205f05325cd1361956e167615a7831a388dfb6af507a58035f9e. 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/QZWFN2468328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35fec9906542cf1390f63fbfd851e8a9091d5e31ac01a4aea0f497c4997573fe. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TWU712304636.
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 0x03cc4f222c6b7170063b8da41e2f61559e2d59d7e5f90e2e744b21ca85202d63. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:39:13Z), 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/TWU712304638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c341cebb30ba0d4ee3a9c4a87e1cb37aec1f9cdfb8018cc1c63e3fcb621a01. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZWFN2468316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549f1b4c72fdc5ad83b22d3b469f63826cddf1e1a97e3f80f949a3d6c4932148. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZWFN2468323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608085bd274f52a8a51b2f464b039201de5bccba2e3649f424fec2cabf67adfd. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZWFN2468324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cbbe6af334adc281e740052206b1a06f20ed4c57a28758afd120c2b790c77f. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZWFN2468330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1bcdaf04476799bf3d79dd24f649414be1611b7bcba6d18e4678608a361e58. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZWFN2468333.