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 0xa3849ea6c8dbd9bc4446700278e6ab2a0f63438eb74e08ee4f73317e21b53483. 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/76e851cb-08a9-4cc0-8770-712f9ebb8768.json and https://artists.proofprofile.net/proofs/artist/76e851cb-08a9-4cc0-8770-712f9ebb8768.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 0x8e7982d3cae5e686a3926e1224c793688330af6cc1546771c6b167e54f8611b0. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:08:39Z), 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/DEFS42002081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe863756bb066c309fa35801d0f23e754dbc977f4f78c9a7cd0a3c7d297e6491b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEFS42102272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a00d76cdc146636d25d6754dd6cf3e0fd3d41ad8c37c32561502985ae6d818. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEFS42102253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbfdfd33de894f69c3be16528008ad5e4b71c6b2c3031f9dbab31304374a813. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DEFS42102312.
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
Wolf von Brandenburg - The toten Crackhuren im Kofferraum + Molch Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffbd859ffe3b615ab2b308d87345b5a0fe9634e47d77e4c6d70a22bc3aabde4. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEFS42102314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803e25ec40d455bc45c487c343cc5d2cca90a66c9f3a73a54ad01b36d4b91490. 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/DEFS42402580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61419f0b6cbb02a322c8999b47239be378b759bbc9d16f49412874231b89cfd. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DEFS42402579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803e25ec40d455bc45c487c343cc5d2cca90a66c9f3a73a54ad01b36d4b91490. 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/DEFS42402580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e4ae38f62ee008702c2b6c15049f6c857ca355776b65902965f8e2fd317aab. 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/DEFS42402581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf323fe8a4bf30ab713c903b3434af28808e467d9cd7171fd1f1295d8cad60be5. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DEFS42402582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6b00d8b733a2cf98e3fd7eb682ac3879e80ecc954155eb7b26b7cff0207fca. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEFS42402583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c774692c8cd362ddcc3be8de05a332c4174b1b994b4f8f69304d3bce68ed7b0. 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/DEFS42402584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c85caaad53e26125ee548d2ff07476b076ee3d4043de571d29a6c708a6ad9e. 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/DEFS42402585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c488a0ecd43ef84fefe28868f26215faccacddbc1f202c69ffa69509c79550. 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/DEFS42402586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859720be97726b97dccf15ad645a4f3e5c527212ba52a8a1677af490797f0698. 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/DEFS42402578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f42a553533314aced14946826dcaf29d7b2fc854fe10617b3da6ba48f338ad1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEFS42402587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6531054444fea632d429cd8f689d46622f64d4f2d3d0bd52a1df7874bc5b2e9e. 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/DEFS42402577.