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 0xb2a0bd34e20816b85a600ea73ffbb343cc4e407092c5cf0b2ea8912b4b55dd8f. 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/8d673efb-fe1f-4b31-b4c3-c7327932d008.json and https://artists.proofprofile.net/proofs/artist/8d673efb-fe1f-4b31-b4c3-c7327932d008.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
e-World: The Ultimate Edition (2015 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 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 0xd7355458ce605723026c12c82c6b8b3d4762cf1dbb0aff7a9557326bb38ccc8e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM2PV1806752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261a0e5430f97e8dc3bff3f6b2f0d6a0c13ed5969a9a185ce09db7c971e6b40a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QM2PV1806756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5223ac1d1fcee06a936e720eb21df217372232a8ad2d9f09e6d59a92851f998. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QM2PV1806759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40f4232e8ab3eca77e33b5cda8b6ea831eb8490e0540783797c34ae087aff7f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QM2PV1824133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9a3d6f105fd8e4d45e2a254f4693fc0d245fb0fac3217578c0e3a5b5c6adea. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZDA41956458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e60b306a33ed0e821b161ad9f8183c2c92537bb09de00b1057a1e7c9d7d5f0b. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/QZDA41956461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5e4a01e2fe6f8f6d8ca0a22d43ea4d96725c5e84ca6b357aba19db3ef76584. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZDA61934595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75e578c7a632132933dc37a83362483102d19cffc45876d7e055601f5e355d3. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZFYX1900666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810834bcf4815bdefc9fc74578ab4e6e2d151a7c77b0cbb693545c72b63aa0f2. 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/QZHN61952759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f90db54c72373b20e18e8b4287105e0ef42606c2d6684253870898c1486c45. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZHN72003391.
Whispering Iceland (Original Timelapse Documentary Soundtrack)
Omega Report (Original Semidocumentary Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ca478ea7d23bc8fcca24dd4e1aca4bb138a72e0f66da33b1f1595b48c0a0a9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZFYZ2157498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afdebff7cd2efaf2e14e565c9d0dd3e9623b45aba57e134311e5744d6efe9d8. 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/QZDA52129218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3505c7934d8770f731483f7e624c1c6b4bd04acb657dabeb55156817abab73c8. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZFZ32289192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933bb83897f71775e03334ebcba7cdc3233fc435c916655c78d3a34633f83e56. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZZ7K2555605.