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 0xdf70a678a2929b5237ad39db4abb95f4239322278039f3c55b66958c86b269ac. 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/4f173319-5fe6-498b-9839-770e16e13243.json and https://artists.proofprofile.net/proofs/artist/4f173319-5fe6-498b-9839-770e16e13243.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 0xd392742ce4cdf4ffee7e19ce0823351c1bee1308ccc10bfcd958aa200488db42. 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/TCAJA2466114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74919ec6dfa955bd4b2f438722f1b3832812abe4b47bdaf25e1e04a598d12589. 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/GX89G2523535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1f0e5f2a2aa9a85a8ce7a3310adf778a10272fd225fa1eef241d4e51ed66d6. 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/GBLV62412440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6aea5a4752a0efd241e49dd30d7f6c73e18267317777616055563f68fa05b5. 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/DEXO52410580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b3d2b03827e5b31797c76f7bbd3952a3e83372f42a8647131268186b6ce83c. 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/NLRD52424608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b0e18b00703fb2dd81ba73f849a211ab0926b6ddeae48caf6bf8ca59d272ab. 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/QZPJ32402701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c2bf4ff611a6e925d4e6dda59cc0ad5fae073b0a27c89bdbce25229767d38d. 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/NLRD52419188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00acd92a6fd079a1c051091384feabac179f857b3a0c3573ef3a086a683582b8. 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/GX5MX2414512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103a9784fc2507a60628a833124e66f0511f0830e4ff8d3affcbd25e2192a077. 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/NLRD52417703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f9f7dd475312f84ec584d3dcbe8a936279516675f8affb62a5bcb81c9a18ed. Chain 2 (Bitcoin): anchored in block 959147 (2026-07-22T15:43:44Z), 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/TCAIE2421530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88687ecd9b7c91cf7166f2acd83d1d0e0923385c710480af6266f1d1581be3cb. 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/TCAHS2354099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b5ef9b137c867172cd4d3ec91c94315305d889fa363b7ab7d8773cb3fd578f. 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/CAQOI2401372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028ab9d0e0dfef46342dc245f35d03f95f816fa762082071165a844853154b1b. 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/GXBDS2301434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b24c0d0179bd41100a6df36eb6b008e65ea20e2b603de760a5394eebf2596e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GXBDS2305884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d885ea0e725476159ba91192eb7f0749b5dc29181d4a4b1c25fb8afc7b2ea3. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/DEPI82318780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbcd76af6fd2c1e95f7aec622162b08d253cc19c91244b212a06fb28be6400d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SE6TI2315783.
Cornfield Chase (From Interstellar) - Techno Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9002860daf985c3871a265feeb39cbd7b5a0aa144671f9406943504ded6d30a8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZZ772441513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd1f5c542f942868c5004849fe0222de451baf226937ed394e2db08e0d0cf77. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZZ7P2426961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76292c492f4b0af0d9d537914f5313eef32e6aa2fa36aeb720ac19701ee7ee94. 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/QZZ7P2426962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e8fae71ddcd655cd091d29f65630e2316f15bc8471c71e75d8dcf1de8591d2. 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/QZZ7P2426963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae41b6365d01736d95f92c88dda32242c366b1f8da5efe9aa12814817c9c249e. 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/QZZ7P2426964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0764a6a37820946df08458d6db8450837aee3e71b42546b28449768f3540152c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZZ7P2426965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab89900d5751677ea7451b72ae498f9bd6c682d27227707bc4c1621ddecd607. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZZ7P2426966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f13ba4221b81f177c40d5395d4c8e11b1058daf376c5bcd326229e613fe682. 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/QZWFR2407600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ad0ee3b9af35b748b45c5401283b77e09e87825e136180c733903db8985f35. 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/QZZ7P2426967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef10872b51a2be98409f4a109df2d8bdf2a38e9f3d71ccf8ef5976c36593dd1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZZ7P2426968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61025a6b36d05a9e3f1e79d0ae21625a98cb4d929c68ac0cf22039de7558c7cb. 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/QZZ7P2426969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea24746243e1ef54ec3730c580fbce8f483843a78b71af6ed53d51ee93cb58f. 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/QZZ7P2426970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bb8a3586e7e277514f84e42b08d4094fceec81dda29d7191a25ea906325751. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZFZ72279485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46875dad70dcde6890763981e562bab5f8c73bb5a4827dbc4f27e5d64a6274c3. 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/QZZ7P2426971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f491200c69f193b3cb768ba62cdf2f0ae39e8730a74904f68a4c03c7ac9ac6. 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/QZZ7P2426972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d25171e51a41d224784fc267246944b993091cf54fafb3d7d6ae2953f302517. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZZ7P2426973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aae578fba5a9c3f1e5349185a1749d06aa38d9d1ad4e829ff31e578ff2cb303. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEUD92574154.