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 0xc3075c45077212befbd43e32107e15835d2cf859f39423c1f99b2cdc8f89a304. 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/ada935fe-a31f-4f6a-86f1-bd9189300aba.json and https://artists.proofprofile.net/proofs/artist/ada935fe-a31f-4f6a-86f1-bd9189300aba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ink & Steel - Original Motion Picture Soundtrack
Dark Deception: Chapters 1-3 (Original Soundtrack)
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 0xd715860556b8521461dd76facf47547e2ea6be275bf5334fe7945a70ed0ea380. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USCGJ1927229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e6fe2dae78ed7d5aae186aca4bbc2434fa48f7089a9e42109ed176b616f494. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCGJ1927231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca2609b2d71acb937e10f0a1e3faf3412d166389068576d5107d1eddd27331c. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USCGJ1927232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e58d02df3fe28776f4051d4939bbe0a43fb22bc338e3c82fa20eaac0ff65232. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USCGJ1927233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecc881a94b7984defc45196f0e551888df81d42f146427ea608287a8d291af0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USCGJ1927234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afa548dadeedde86f3993db24e3166c4253e1d2d7f8f002d9f2bc537f1da825. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USCGJ1927235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e5c0416ac52eb7fd9cf37ab2f91fe44ee571665cc38a8e60883b5e222c0aea. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USCGJ1927236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0dd64d632a99884c7246409ac84ac34cca65434e8090ea27962b01adc5f800. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USCGJ1927237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846be36781b90952765ad8ff209b2ba5503531281789ae92a6c78d07e555c124. 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/USCGJ1927239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bcefc58b9642994e0e1f0750120c50a72952ca86186c369be74a5aed26a5c0. 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/USCGJ1927240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7049e28c6ee60dd2638ef78b8c43dfd27778ed895b9ae1564b027dd283cd641c. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USCGJ1927242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76ac3463414f7558368b65a70b392365af782911d4f3e8bfba79b40d0e4518a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USCGJ1927243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40ee2ab8ef86a5f58a340312db433b2d7d6d28785e802f0064513b1f2bd6d00. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USCGJ1927244.
Dark Deception: Chapter 4 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2288e71b6bcd47be0c03eaff42c2cee2cb24498389757a7a31289066ffd32f. 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/USCGH2071942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817df2b7ded1c25969b4943179dfecb57f6f4ef3abf708993e4ee45ae5c2c6d0. 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/USCGH2071943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c0d4fe01b3dcf8e3b27976febb3f39fcf017bdaf0bab04605adc51ff439a6c. 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/USCGH2071944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1858d91dbfa94a047383d060f3fb84a3233531747033da82e663eb4fab981832. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USCGH2071945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22564e67574cae2572d41bb3e895ee473b71907da1a92f10ce0e6c94e5c2b2c6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USCGH2071946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c8fa9fb28b7a1a945ac968dca5db9062511b52242bcd62c1e7d7f967491a78. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USCGH2071947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c58457466f182b6d9ed72722a18c20cf6699312efd0ad31ae0c92d1463d1f2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USCGH2071948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd71d84df3767dfb8e127e41b4bba75eece42a551702f8c7f3db340d8798f3f. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USCGH2071949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7c94071e8bfe01927a743ce4d64bfea93aa1d8eb3106836c8733440a48ba49. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/USCGH2071950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e82438391b085cef406edd3a0cc3932b9107174d00271a1ee4ca4bd961f9f3. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USCGH2071951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc715296833bad3bee0c462fde0cbfba0a3a7eb90e79d77600cf3c4273f83fde. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USCGH2071952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37a4ab60ccf4b51393ce0729a2979009b0dcd29d8b1675d58226e78d5934984. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USCGH2071953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7036854412f23890564159fec36995b36c50e334168d6ef9b2be62873092717c. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USCGH2071954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64eaa6dfe3c7b061993815a4a283238558047e7e57a5fac0131e72bf3c63399. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCGH2071955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7f3f87d63a27cda61d2c211cf93f8b6d89753842a502b3dac58e609b966b0e. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USCGH2071956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29204dcc289106f34029ba0926b612bc694497c3ab17ac3678bb4e3456e39ab9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USCGH2071958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16e3683df9ce0931682e762616afc057c148319d242fb5cac4cbdefbbaf154d. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USCGH2071959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c32c9d8037dff22e7b1d7df101cfa70546a5a0f533e8c979d4b326a4dc3b192. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USCGH2071960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27910a6742efaf7f74128d2bdde49fc7e4bc12aa8216e450c11b7dc6fabe1dcb. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/USCGH2071961.
The Estate (Original Motion Picture Soundtrack)