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 0xbebd1205b6fb8c15c6a89303778fc3485c3bc593e06d4ae2f9a07dfd513fee4b. 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/f8b009b8-03b0-41dd-9770-7280d14b61ce.json and https://artists.proofprofile.net/proofs/artist/f8b009b8-03b0-41dd-9770-7280d14b61ce.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 0x05367b430d9dec20b5c114feae1a7ae3f8dc5134f536c504fcb340483af59924. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:58:00Z), 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/ESA012214134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d8835f95a3e24982d262c78b2016046def8e4b9da608ac81333191a5b4d9aa. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:03:24Z), 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/ESA012214135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4760792d9d0f52ba92d8ee5166f233efff853cf039a353889fe987f9fe9c3c6c. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/ESA012214139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46653c5a7d266150c6b612d8c656e533c0f3c7faf854e32564669934a4466ac3. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:53:50Z), 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/RUA1H2270087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4353b4279644a5e1e25ce96334e934cd6b5a8c23805eca4ba72a7979ba342b25. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/RUA1H2270340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603367e21bdee4bb97cea8d9ecfe67079b2769c5e5e73cdbde5f6e66656c2425. 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/RUA1H2271318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612008d6ef0cbb555d079b109da2b34b8cf2ace5790143b0b3a744a64f9e3e51. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:05:15Z), 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/RUA1H2271320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc522c441ed933b756842e160db1b87abfd309514b6e35c46cab1f62702dd4b74. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/RUA1H2271322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4aefd126943df8738dffe24bd8cb5fa85b3b844812133c0bac884e4ae35236. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/RUA1H2271330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9001cfad4c35ddd1bc2495e862ad4d02fc29b40ada9c4f189e82a477c023c252. 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/RUA1H2273031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667aea4903a9fda51ef842abe9f6a1ef938035b0a5614717b3e6eda1f41aff2f. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/RUA1H2273047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a01ba59bb6747e8b8ad7d10c74c774208937daf2cd4e7ff5bce3813efedbd2e. 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/RUA1H2273048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da9b7de7a714c55d2ebf5e045624321ef821009dcea3587c20e9b0b08dbbcd4. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/AEA2M2240585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8b03a116da89dd939262a426245de71478499d3ab823fec3226adec466ea5d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/AEA2M2240588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3744840e14814492e105458b597f95325b9dbe6c380d169e8b08641bd83612a4. 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/AEA2M2240590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45509f7b8803149d53d1c345b3726d7f186449f2bbe816e8cc6cc1fee8ce08c7. 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/AEA2M2240593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cc743433748115f5a30c1dc0feacfac5ea5b9dd7ee6b5d2ed4fb23f032613b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/AEA2M2240594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414701cb253820cc99b966a151afb666056d1d70979693cd141f0d9d586dbc97. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:39:22Z), 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/AEA2M2240595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46d910f9598f1ae3e03cff243ec53b8482c00b100ef438940fc4cf45a545568. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/AEA0Q2237900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f877c5aa18ea86a2649d15a396961c194a1348494a545dc640ff795e160a74. Chain 2 (Bitcoin): anchored in block 957558 (2026-07-11T11:36:38Z), 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/AEA0Q2237901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab01b635cc60b8c168b2db768a9255085b7f87c01a02c3505fe3c7d28dddd67. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:04:13Z), 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/AEA2M2186301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88354600cf08c1946b2a457aa47b7d7eae7831ca0ec3fa968015f8da0dabd276. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/AEA2M2186302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fa31dc481ab6e6ce4a52fb3013b7dd68f823dc7467916f23fb92fee5b45a6c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/AEA2M2186303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6895517eb09050514ee457e5c46d6f9e681ae0f46f790f60109611ed2df9dce. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/AEA2M2186307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a2a71fa4d216815d377fbdd34cd40bd638a0592724cfcbb6915fec8e3cceac. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AEA2M2186312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591ba8143d3b6be589e33145089287dcc8c74934bb9f248fe1d9479fc711d969. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/AEA2W2452033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f59ca5829d9fa20432ecb3c8681db9e4bd414348119c61e8a7d1d80c77c0a2. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:43:05Z), 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/AEA2W2452038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88c557a7bb013c640db2d74d7907f460ffefdea9475c4fe1a2de1966e103c7e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/AEA2W2452045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15367e3eb562e835ed593fa071d1a2815a186aa8944600066a73447a68b2ae28. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/AEA2W2452049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c3dd30457004299357c965b24b0fc8849eedf3f3757d391cf96ce8d5cc431b. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/AEA2W2452052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75a0f24939382190a3ecbd05d7053ea392e8c103aab636644bea24f52458a0b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/AEA0Q2428953.