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 0xc73adfe51f68b2f613f7675b9c0964195b80aaf3eb106bc86e2a6d90593daa1e. 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/b628f737-2ccc-4539-8ab7-d35d85d5e803.json and https://artists.proofprofile.net/proofs/artist/b628f737-2ccc-4539-8ab7-d35d85d5e803.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 0x8d22532d4c90d682439c358ce1f0d7b7841888d2b914bd1e9c566d9650be73b2. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TCACZ1716527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d90df6d7508cb1f1a27be84e974de839b1a19a0ea634987b69f2404aad7a681. 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/TCADA1736464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35accb61800ddb4e3c2295c8f9ebca736f98748675e77cafb1902e68b19ec02c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCADF1737726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd136b79e0f5b73c2502ee14c9b6584d85798c61609357a59427900069b512caf. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/TCADH1719386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b2825b344bc7094e2e14697e7c434a67202d00bf07d361997b2d510027f7ea. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCADI1791091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863930575dfb8eeccd365270e65a20a73552d25620b7fdc6cb5b640671c16f76. 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/TCADI1791092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3b795531921d814cb45f353e8b4784de9c6e7f87caf2ff4953bacf7c220f33. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/TCADL1835247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bd237e74471af089556915402fa2f0679c34c158ab6f2b0bd3d94785d8892a. 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/TCADM1865441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84abf55dc5e27b87262fa2ef444635bb69e4a6aa728304e095d555de4824adf. 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/TCADN1858293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f38c5435595841c4082fe00e66ebcf9077724c881d0eb5979405dc2ce55e8d. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/TCADP1888230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaabede700f7a48b955921f9b627bfa19d85a29399f15e130a0b3a94c9c8426a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCADR1887435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cdc4657f0ce2f77ed668b76d7d93849cf3217f2425d8042c31a7a6fde08e0c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCADU1860233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3885e9d055532e853da2b53b48d6876ba07193ab4965e4cd9cb6da31fba3e0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCAEK1958515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5903c5976a159cef69cefbfd1d2ebb2bacfafd3ad161898511cd01b3524d4d7f. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/TCAEL1985358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf197035cf86a0a48bc6e0f784b12d18f472c11c9d5a0e941a0efeaecb6a485c8. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/TCAEN1924217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa087000e6cdf7ab2a15953976f7eb0489190c19c365e37683d4557041b14bafe. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAET2083701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa564ab9846733bacb9c7130dbdf20e2fe7d5125590c614b0897d3abbc49e2ebb. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/TCAFB2086761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97562a8d56d98b6e1bcfa0f725cf1a4b6144af738b0ebcf377be7d67d431a5f7. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/TCAFD2012216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8af3d6d1f9c907ac8d646ca6f523a02de6b1473fda6f62176d8fc25580c8ab. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/TCAFE2091798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5377556655841de4f0423604c99fc0893427827def87d026a4c7b2b423cde8. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/TCAFP2199676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7840515b6336ce53e7cdfbd912864711dbda1489bcbf2201b75a59ad7aa0b8f2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAFP2199672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314bcd592a0e472be07158b640ac5e78fd2319cdb77f5c4d327e27e4f0713553. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/TCAFS2158591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773216e9f7540fe259712c0393215765d1d71e4bbff3e24539fc7fcfa5d0b8b1. 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/QZN882165027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d43fc8bae1dff1cd884e50c290129451cc5c188f6e0b74fa7ec60ecd5486b9b. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QZN882212781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8c8fc83c375a121c4b826e24eb41f4ddbdcd7ff9b17c365ece628a2400bba4. 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/QZN882177237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4415a5b43d4d57a6b7b8d6e01e9630eb5a3aa3562d141d161fb46080622b8b14. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/TCAFO2151915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7840515b6336ce53e7cdfbd912864711dbda1489bcbf2201b75a59ad7aa0b8f2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAFP2199672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51abdc8efee8e169d3e1c5ed551894e3965cb68afa9f95e3260ab97ae212dbb. 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/TCAFR2174777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773216e9f7540fe259712c0393215765d1d71e4bbff3e24539fc7fcfa5d0b8b1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZN882165027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d43fc8bae1dff1cd884e50c290129451cc5c188f6e0b74fa7ec60ecd5486b9b. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/QZN882212781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530f15f1242e5014f085649b2410771eebc84c1893665e651f627d10ec8b9c13. 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/TCAGY2394858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb339acef25e0cd403f5dbbc819400575af962efa5bbc49c5254c67d2c1a49ddb. 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/TCAIK2482489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfa516b0304f8ecb6dc15e888942e58b7dfd7dceb367d49d5931ff07d466501. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCAIM2491900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec54d163b7726274fc398183abb4a94d32037ae18b1c4b09bbee7523f97c17ef. 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/TCAHC2329849.
Hype Songs for the Sensible Millennial, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff02260b9c72444295f80ccfaf2bfd4ce2198550560b3383684ead0a3c139b2. 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/TCAFY2157440.