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 0x3111d86a6693c1d98e94523165b5221b7d64b637b7b08db1ccfe4ca264c47744. 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/2acb4800-100c-4d63-95a0-4f8cfc744127.json and https://artists.proofprofile.net/proofs/artist/2acb4800-100c-4d63-95a0-4f8cfc744127.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 0x201b51d52a9c68b36f17b90000be33f6984ddbc07e794db50fb6f678d47151bd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ISV442044901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda7345ddd15d5c51f8ac4817c497775ffe35cc51219515fe605aa8bec09c43a. 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/ISV442029901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c629d934d9ad8819338ab907794fac12d0ca745583939e18f5ac6f0f36394b9. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/ISV442056001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79161a8448cbae6e95abcd54aad0f6650683bbf9531e149cbceea04c3dbe2e7a. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/ISV982172001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1a8e2aae27504912d9f8cfad5adf2609bd5397845a9f3ad5ebe4931705ae38. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ISV442290501.
rauðir draumar (fyrir kvikmyndina "Kuldi")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20e55ba965da80413b88e415242d8f6e3686b156f552b081d3333adea2353b6. 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/ISB112308301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71799cf737d6811b3478720804a8224186d0b590fc808b141a48f6efc6a7c108. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/ISB112308302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e6a35a279655e682d40a87ba668d557b8de18470af66c378a4c666bec4d282. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ISB112306601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d1284eb794d946547b06ca70f60f37c4906368f52d480c837c9f7c130576f4. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ISB112308304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2b3a5d68c69bc7da53dd42be36f4f24e5247c5a56167fc1bfa376bb250681b. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/ISB112308306.
manndráp af gáleysi (live from raufarhólshellir lava tunnel)
fyllt í eyðurnar (lifandi flutningur í Hljóðrita)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2a3f8b4418fc540b22c4cff485cebfba90844ec65528e876a5f0e82b2a20d3. 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/ISB112501103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b6f729d0d30e8bafe4da3757f4e1902881364004a788637eced972745d290b. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/ISB112501104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10650e84d47e0349563d92c6ff379a1b793f39b0a47d79522d4d6436c3bf7305. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QM7282555511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e82ad2dccff167816e224b2956cfe04101688a9227722be52140154305009c. 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/US6QR2400045.