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 0xd2e6e1418e07eca18e46dae3f546030986583919e829f6efca4762d8f22a58a3. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3fbf3032-8722-4c1a-91cc-f3bccf9aa0d5.json and https://artists.proofprofile.net/proofs/artist/3fbf3032-8722-4c1a-91cc-f3bccf9aa0d5.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 0xf8951fb2130cf7b91c5cb0b80e167b549a236b8b4f279aa616b13e3a9a32b1af. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEBZ71100696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dafe8d39ad6331cb5d5e989f384b2ecba8a8afd5b15af89fc132bd8c9a0efec. 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/DEBZ71100697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364da2d4c10628c670b3f5e8bde5b4a2ee831ac7a145181da5f7541a821f732d. 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/DEBZ71100698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee9b50b8649d95683662622cac4158c073cace72142fedeacb51d942a3b3170. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEBZ71100699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ccec0f12f046935f5ba34eeba1e0133fd29ba2e4bee2ed1198b04c25496e08. 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/DEBZ71100701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192c38f022d47ccca13d831a9276271043cfa391a763c06448118f057f009761. 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/DEBZ71100703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadeb29dd41e8bbf2d33e0f890d8d7494a80c8cffb4cf424bc6a14c921f444c23. 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/DEBZ71100705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2ed2778577414caf4b480863d977a8f9c0a3b93e4d4e97b383580c9cdb1f4a. 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/DEBZ71100710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6db5188afbd0865aa8f17521236c7426c77164562e8cbced08c1cbb26ee832. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEBZ71100711.
Shout It Out - Take Your Ass on the Floor Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e502dbc003a75056e794982d9e82658d55bed13971ed5a4907f8ba52cd9beb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEBZ71100714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4583813f26129945f5c9f5be533db5ef86b9e48d4ab5e6e2c1ae55fc75bfbf. 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/DEBZ71100719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0d9202360d33daa79ed397f232ca190fd1f434ece741cf3817cb6008294051. 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/DEBZ71100731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc68524fa51d094992f7bad629c3ecbaca6e2e9dd573344dda42d0bec70dd0a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEBZ71100738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4edf5a8d3287b30c919c5315ec605941123c17deb3c07788e83972fa448237. 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/DEBZ71100740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98ee3879ffdfad8dfcebb387f354f640498b9b7d042fbe2c0fc8dd73eca184c. 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/DEBZ71100741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224fdce504047cb1cf3ad0f8f94110fa35450100d76b6f2a9441d66eda125eaa. 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/DEBZ71800521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dade6ef3016713803902c99dfa55ebb19effd88d05a675c1d49d071f6e70419. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEBZ71800507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30506f8b8e5947c327f68bc971c9a5171e4114d0b18ea152dfd2bf2be3a9fc09. 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/DEBZ71800508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa137e5e2294bd057fcf85ac59ad53ae10b9977655322a9b3c3a6c8d98df36b9. 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/DEBZ71800523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629b1ec226e8faa12d7046c6534c973cbfd3c15e12708ca5a39fdd49633b19b3. 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/DEBZ71800509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd164490c28f07835623843c93784d57f023fb145ab5cdcd26117709194227d5e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEBZ71800510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e839cd8b20480671e27a1a90ffa104b1b68671cce3b236d2574fc432e20545. 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/DEBZ71800511.
Resurrection of the Light - Black Summer Version by Rabia Sorda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cd1dfd6521302afa3a31e614418d56b653aa7fa2095b48f3cac8ba3c49c66e. 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/DEBZ71800526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74a504b88b151edc9ff69916fc461a6b27df16f5167521a45930080427f8005. 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/DEBZ71800512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c251470e11037675b9e3e29c78f9794d81daf7c2ce102aa08cacad784834dfd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEBZ71800442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02cbbdaee1233e2f823ad29096a5d364cab9b8fc2ba1b466c6027f25a9619e4. 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/DEBZ71800390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5764330b0d275033fd23551b38939cdb9419d4c67c3868627ff9d8ec1791176. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEBZ71800515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c11c447d14730d93bf82aca069eca3508f4dabc979532ccc7ae783eaf4dd642. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEBZ71800516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf6c3c30638a4c1d3fe4df08de717042cf8127164da9e05c51b9b4af12565dc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEBZ71800517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724e487f98b97862949949b799f763f236e2db905e2bb4345ea0f00bed2c4396. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEBZ71800519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd56a3c71a37b297073cb63f8eec93f79478dab94bb315972ed13c83b00b0851. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEBZ71800520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe144fd0d61e249dae4ba3ff64f254502f84ed1be0c170753f1c83532633bd362. 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/DEHE21400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5591a3635ea5dca966a5c436f661555532431253d0c2bde0f9285c1637a564. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEHE21400071.
Königskinder - Seelennacht Remix (Bonustrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09215d681542c3509d24fdfabdb152785559cdaa31bf734e333be73232a5b06. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DETX51800419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb78d35bbe6086bc783d08e66812cb6509c95007eb3878323ae312907122799a. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DETX51800415.
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
Zerfall - The Eternal Afflict Remix (Bonustrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b82070e0b5a1a12f6f4fd4262f9ef07c70cad329fe77dc324b1d97eb55ae491. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DETX51800420.