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 0xf65cb2401ae0abb2d5471be980f53197b4b32251cd067073248d259ced9d1eb6. 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/d01bbf90-daed-43ae-87ef-7696dc51eba8.json and https://artists.proofprofile.net/proofs/artist/d01bbf90-daed-43ae-87ef-7696dc51eba8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Saltwater Crocodile Tears (Acoustic Version)
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 0xbc1f13ac64d79654318905712012ad0b5e00271288cca947d0d3f1a95e9730ea. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZFZ72366296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e517d51660bbd54e2d062e7183e3e39c2a32a66a027abb2ad7135133bc981a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:41:56Z), 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/QZFZ72366297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01c4d23743a34f5c03ec31ba5e547bd1fb93dc55c3c7872bf8242618681fc2f. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:01:56Z), 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/QZFZ72366298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc4f7989ca4299d510dc6f247c25664cf03888b8d813b741d6dd331325c8389. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:43:15Z), 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/QZFZ72366299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38420ac2dc6a1c846e0fc3b692fe780dca29a22a9cd754e8ebe676b0355c69d6. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:29:56Z), 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/QZFZ72366300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479df0ef64e6b28b65edb8331fb453014b5fc7a29970f7d07c98a7aebddc1437. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZNWU2340650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0152d151d4647bf04bb8b5e09dd737c1f49ccfb4ba560fe1754dac0eded1f955. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/QZNWV2358819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd275cd3b679d1c938f110d676f3567064557a242a2cca8e12efcc2598371a9cc. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZWFS2467402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e62a73a78e7cbb11a6937a696108549df9fc28e69080ee6a39ea29fed76923a. 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/QZWFS2467404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ea803091c2bdcca87436e43c10bcfd430ba31f61fd20a04a463f443bf3b12f. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:13:53Z), 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/QZWFS2467405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9324de007c30e2bb82c34143e8f77746f5c28688863032018d9546d5c4b2f5b0. 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/QZWFS2467406.
Worst Thing Of This All - as Regular Show
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d88a775d90e80bbc4f8b34f594c312fe419075b3957922aeb15edf95d7b390. 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/QZWFS2467407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb2d283a8e5d267b9f390b0f1c8ca3d9cef7bdd0bc14ef50e3b83520ccad64e. 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/FRX201978138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280c5eddf03ee92e02debc3ac233c4981920060bd4d6b7e0a36db0a3ce8e30fe. 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/USUYG1326700.