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 0xfd4bed743ab3a22242ece04d45948a7d7f869a1503228d4949e6bde0617d8dd7. 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/13140731-bdd1-4b2c-82f3-638cbf898dd6.json and https://artists.proofprofile.net/proofs/artist/13140731-bdd1-4b2c-82f3-638cbf898dd6.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 0x9ca9262c66ef627cf4cebd402b700ad40d05926a32c75ceeab7423ea12a4e727. 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/QZNWQ2463090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6429f675fca920a6071d2f024857e5b7aa857f288f6cd15e0613422b5d4908f. 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/QZK6H2341571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553466eaa51be95943e298b5e266d408b8b1087a9b880b8e0d198d93712f2105. 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/QZFZ72228638.
Kaho Na Kaho (Lofi Flip \ From "Murder")
Kaho Na Kaho - Lofi Flip \ From "Murder"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02aba5453cf29516a7d8bd75da71750d9f5d7260895b10bc68005badfceb5c15. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INUM72400577.
Woh Lamhe Woh Baatein (Lofi Flip \ From "Zeher")
Woh Lamhe Woh Baatein - Lofi Flip \ From "Zeher"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb17f73b0b1912282225f3d5fd969764099c31e1d8308e51fceaf943f5b8b9c3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INUM72400554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898533656a178e3b9928d5787c61c0094c4cc7374b49dedd749e7317d7f87ab5. 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/INS172409076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd145c640d99802fdf10a118fb0e9196da40a27a30ee9ab12bb6ce2e1959a5fe0. 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/INS172408893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4eb7f2f6719e1e6e37ad2b609f65fd8b09ee636041fa05404d7b0cfca89000. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:31:51Z), 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/INUM72400405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2e423955db4202dee8dbbf62ba2f2226f03550fd6ce9f1367cb1fe77ae1049. 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/INUM72400397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563ca6edd0f5aeec6c3db4242dec0703455b9b14506a0dbf1da7d344232764d6. 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/INUM72400364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f0df1a744609dec00fd3599f0ad84613422b9caec05bed876610d6f2358eff. 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/INUM72400362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c921b86da94c9c8cf8e992c5964cc77d7815bdefd679f25ccf3c757e88be44. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:45:52Z), 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/INUM72400356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be7505a1c3d45a147379d41f49b9a83566542a5065be686dff0623dfeae402f. 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/INUM72400277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62befd1e51e3098bd0f1801de48017a558831cdc5372fa9101675c11f8cc654. 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/INUM72400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6064de6c38f47ed3cfd9fc6184a55d582752133f72a026a3c0e19b8f6fcde379. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INUM72400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003687bdbb802ef63fc032b45e6df4f0592a6ff6b353ab02568f81a65f8838b8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INS172401545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646d9ebdf6ad1ecafc6a1a75ea337ca0f09c071fd8e4affa91f7601b34d75e13. 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/INS172400366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bac4ad6daf5b6fd3f587d0194fe69d21c20f1ba836a57af8aeea1685261ff7d. 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/INUM72400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fffa7c446e92dcf0f0558140c3ae25bd6dc20517bbbb99b064a422399f8732. 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/INUM72400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa01486bcacf2ce28e03173639e3d006fabc25bb6aacb4d6687bb89b9838de2. 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/INUM72303135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0120c43a44baa29b73475a93e972097725e34a5141a2ef491b176d2dc867487. 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/INUM72303130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7aa3e304261f89dba4f028547f2b52b5b38ebe985b746b1135879ce50fafa1. 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/INUM72303127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61846d7b5a44050be9237b4311046cd749fbd585850d75c4a77d04d31901f643. 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/INUM72303122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e081cd1483470910142128646e7fa54b9455d1ca7e77f937ffb3dee438ecf4. 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/INUM72303107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d7d09a4931f8b91379fa19f9ce840352a2680db484e82d60fbb648ca81644a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INUM72302926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211885fe7f6124b7ff1aeb30b5da397de12e3b6f746a288b1bc88423f4322909. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:58:44Z), 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/TCAGZ2344591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e835bc7adc6193a05a779fe14f9c107b1eca74a9fa14061b2e055b78b8481a6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZNWT2283799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d000a402f41c0ff08b135ed5362f209d881874480e03806aafed7a55cddd7a3. 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/QZFZ72230327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3542e755341e29a94380ae327232ec6ec256859ada34a00667f609bd201796d6. 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/QZFYZ2200541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af0ec9f03f89490fa8b4a8aa44a20c9c8de6d26c848b12b1e35c2569e7a2453. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZRP52199103.