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 0xc3d4a9c606b8a637a19be599863566c62eb05916eb04a6a5d3ce4c7b1aa8a276. 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/c7caaa77-f065-46b4-b4f6-eb591313f69b.json and https://artists.proofprofile.net/proofs/artist/c7caaa77-f065-46b4-b4f6-eb591313f69b.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 0x4c1bf3dabb0993f8088f41343b7fd0d342da34c69560ecf81d66b1e1f20ca30c. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:42:39Z), 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/GBSMU5973991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1ad898f354e7b94487660e0dd480705913ba2d30e16a2cbdaecdff13b7df63. 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/GBSMU5973996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd763001f3c5579daa0c8af1c306ba605a37248e23803942f9145af52e86a50. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:48:41Z), 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/GBSMU5973997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c75c971de6bcab5b83c108ac638933262ac25120604faaa7f08125bd994a27. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/GBSMU5973999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2fa42a0acdaf812df13f7b948974da32a6187c918d8364cc43a6290e0b0eb0. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/GBSMU5974000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a72250cff0d453ae0a97e35740090eda8960c6e34d7a202d2302096f8ba12e5. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/AUGBT2230184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325b6113ac09dc351209cbd538ec09f89679bf776b7d3a4216044fb336e30f45. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/AUGBT2230191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c601b2a859b9566011cdf2dade33918199d41082eeff444ce5d40cbabd87b4b. 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/AUGBT2230198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369053abe2c2dfce29b747b161c5a6672853b1bb99859dd96cfa7bef5dff553e. 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/AUGBT2230199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3917d1a3ca4cd08deac093a7d552f941447048c0f71411299cc3e766c982fe1b. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/AUMEV2369685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa45634fcdc2c0add2fb193fc2e18fa9866e3dc1bac02618e08469f64061265. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/AUMEV2369688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd646239b150fd0f00a8172eb9cf68e12349cc45a922f76198cb7d1bb3149de. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/AUMEV2369689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8e6d8d54d14a0fbc04fceca699f0cae1a2cc3e4f83197a164c1660fa220f53. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/AUMEV2369691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd21331bcc90ea9ef5c2c6a43bc356abed740cf18aa596ff707fa0576f2415b. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:04:10Z), 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/AUMEV2369692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9cec20ef8be8bf6eed66dec1865271fec7e35128b3864fd3e9b5498006cdbb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/AUMEV2369694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa027403d4a36b6fdbfaacadfdd2e8594abf57794bffafbefdfb40590bb9c787f. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/AUMEV2369696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f448410ccdedd5230ca9221e71de45a9d0e1ff3bdcac85b2508c81db26e8c3. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/AUMEV2369698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd6ef349bad34fc840d0c81c624918f2be10623328f7d45e8a4ee46a72145f9. 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/AUMEV2369697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920a4bd0639007122deb6e814230f542da81e946e6885398c5bdee7f02e6cdf3. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/AUMEV2369699.
Only You Know When Lightning will Strike
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa618bb568c730cb608d9d5d451be2fab2e1478b5ea58b23d09670a43c7eee8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/AUMEV2414972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100398c6d96fd940302acb7b6219bff4eaa5e30edea8c5505da4abfc090f5410. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:35:35Z), 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/AUMEV2414973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4739555abda0ebe0574076d8f95f3eabaa5539d0d1d91e85376e3238e327d25. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/AUMEV2414974.