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 0x92726884487530a84afaf0d095cef1d8a5da2364d00332a2bf22d84c4badde3d. 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/d03cb2b0-a892-44ce-ace3-83a423e78204.json and https://artists.proofprofile.net/proofs/artist/d03cb2b0-a892-44ce-ace3-83a423e78204.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 0xfa66c1fc083760d1fffea1059f3a9ae2e4b69b07ec8b43e2d03adab0e651acec. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBCAC0100516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089ae258accef40029afa594462a7296275bb7163d3f3012dea45b94e99fdc5f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBCAC0100517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbc5870f90965581dd01bccc9f69f13158d40f5e217f71a7d8ec3bc151abf9c. 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/GBCAC0100518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6a5272b111c38ba7934a494fdf3366a97108b75f4bbfe3e93b8b188f0f2886. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBCAC0100520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8341da6f19ca527bab8445bc1865d8e6a8981490663d064d83ce1fa1fa6ddbff. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/GBCAC0100522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a89653c28ea82fe8774acdd0dd23c97c8f1ce551a045527d69677b3db177a5. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBCAC0200694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e613cc85d8166710218c548201c9f45fae2fa7c8051540dc52ae68023e1775. 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/GBCAC0200695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3faba35b3371903579f8deaa9c96502493640e965eff5852dcd9edc6078b5397. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBCAC0200702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd4601362ea0ae124e35d6b4f70bc5b70aa09eeed1a975e8215fb3b362c2423. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/UKJK91700006.
Sonic Portal (Pitch Black's Magnetospheric Multiscale Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2753f622d7b16f63cb9879df536fe3a5aaf834674fa8fd2f87295d5c09431f5. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBJX31850001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbb689127b50d97e191a82ca4d8591cf014867bd04c80f5a978e2111809acb5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/UKJK92000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970ce929facbcd7e4087a587ff0c5e16a565f1ec720dc1d2665b01a8825b739a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/UKJK92000030.
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 0x9ae7d7495ec1892683a5abdd98604aa5dba231d647470082f0df2163e473ec32. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/UKJK92000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b6ee7b5b907f7fead93c7cf73dc9509106ffafcf5a03f747357d5fef93f608. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/UKJK92000032.
I Don't Want This Sort Of Thing In My House
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d179224531f8e200fc3f94c4837cb567db1d3dac6d447ae0093ecbe01b6b51. 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/UKJK92300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe118f87160c24d5317b62493e058914620fb10d9402a5c4f5156b5f74aff9c11. 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/UKJK92300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfc9f0b8f8218725a67f1ae2039d0cf119596167226352073e15c133174f689. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:12:21Z), 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/UKJK92300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5d2f71b68d38187b2d8df58218479264e4d3a715d63d661c3b410e30b104f1. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/UKJK92300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2faf221ac97f6b864691f4d6545fec4e128659a5730b2f7a1fd2a5b717cd12b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:02:57Z), 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/UKJK92400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ab3761e90cdf262ca4b05a5dd08640a2101842bbb717b086600c2b8c930617. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:09:46Z), 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/UKJK92400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7147c24b726987179a40f0eff9afa32ff96d86771be85dc48bfe45d7fb6ab374. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:28:59Z), 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/UKJK92400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57a8fcb9c448d6295bbe45fc068fc198b8b22844bd494eb5d3148bd4ed97007. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/UKJK92400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7014b2f740899760bd5fe3432bb07717d6245482acb2e4db788368e5cf01370f. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/UKJK92400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bd44822ecb19db0127c615f4610fbd3984f1188180ac29e8684e636d35d5de. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:22:21Z), 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/UKJK92400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1631b4e68b8a682510ef8c071df59cfa5b75d4491f519e49106a007ee22c101. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/UKJK92400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d915a1938f032288dd2d58e304947f34321ab14ba46801c214780e62fb07363. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:03:55Z), 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/UKJK92400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925bb59007d86591ba74c96c382533cefc71782cf0d3c1facd4e5d095e6eec80. 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/GBCAC2301089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7632c473d8205050fbb0da9fd7cd60cd629a45d7b5b821e2ab7afc86b207be66. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEPE51210002.
Sonic Portal - Pitch Black's Magnetospheric Multiscale remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd94b9236badce44ceeb00142073747b94509368cf124a1abae68c46e6a9246d. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/USA2P1803270.
Laniakea Supercouture - Radioactive Man Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c45fc9d620b724955c144bf61ea02b144dac60aa456079e622ac271408d654f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEH742033168.
Millennium Sound - Radioactive Man Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc31a4e2f129ef9c0dc294e8731c5c9b7f4c298e5def892c3fba5060861d8d07. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USDFX2300002.