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 0x0d51216344a9c4e96657a4e073f2ded2fc347a195131acd0995616477abac0b2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2b57808-ac0b-4039-8899-51cd22baddef.json and https://artists.proofprofile.net/proofs/artist/c2b57808-ac0b-4039-8899-51cd22baddef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Famous & Popular Lofi Cover Songs, Vol.1
Famous & Popular Lofi Cover Songs, Vol. 2
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 0x1fc45b5b05f019890252023b1a2781e943c194e911e8526e50647857a5be00cb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CAGOO2071066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68e905f046ceecce2439d514c2d92ae3f1d34bed69d39978acca34780703617. 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/CAGOO2071068.
Famous & Popular Lofi Cover Songs, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34eb6af3db71616f10296c97fdde337fd7081df997c029ff0dde14e7b6d3c8bd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CAGOO2082345.
Famous & Popular Lofi Cover Songs, Vol. 5
Famous & Popular Lofi Cover Songs, Vol. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61dfb107f34068ee851102d4a2e759e21d01d7cde11a0d8a8e56473db7fbfe40. 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/CAHQJ2009032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a852ff8297369000f2749dc1de8dcc55a3632d3dd6eaa6473d69201efde2570. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:44:20Z), 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/CAHQJ2016467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31fe86d74b2ebcb23e68ce0b35ab1cb61a0ead4751680aaf8396a79d032b80a. 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/CAHQJ2019220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244d18ffeca84ab9a996d87facadb7b096a789bfc54cfdb24da4828ca05c6475. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:01:06Z), 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/CAHQJ2019903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77049630181b09a59e65ff19c12a6ed906fbcdaedd21633c9d7ae3475e7d2a27. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/CAHQJ2019901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfa3006dba6ae7955f63ff18784bb6d5bb5b816d6a665ccc289ce1d8d3dce77. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:04:19Z), 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/CAHQJ2019914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29d85337230b48f43d3f7f7366e5e94e37863a0b9b91441fb47f4d5ebaf6286. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CAHQJ2019941.
Against All Odds (Take a Look at Me Now)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dfe0d4afae196c5b4f0f6056f97ea1b558bd8674d98596b0467340e6f1cfb9. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:25:43Z), 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/CAHQJ2021455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e223d8a0643ea3d23fba75006257f780398e36b3cef17dd8f494a4c28fa032. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:07:57Z), 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/CAHQJ2106292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5ada7fddd45bace53dfa995225bd2822d3c4ea67a46a99e5c58df53c3bf3ef. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:44:33Z), 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/CAHQJ2106924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765ed580acd3917e25d6da2290befce46014af202b9408c6f652638d18fbf2f8. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:52:28Z), 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/CAHQJ2125069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436ec06e2473348161af53170b57d04026ba7d8b681efb9ff455b6171089db50. 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/CAHQJ2126924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc016839c7eeff5d05964e323838c359a50225a28e9ae7b7abb7a4e2674214443. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T03:01:04Z), 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/CAHQJ2166087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf440b5ed0c16d87d72c9e349f0ae82ca68d416d6c915d0cd6edbe8536b9956da. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CAHQJ2126659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e23d3148b7478d030614f7257a15f1641de2d9a804baa1eb7033cc16d01f669. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/CAHQJ2126803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6a6f9864fd25efaaa818c73a5eb8bfd1ae46b68bbb41912878f81567609e47. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/CAHQJ2161740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106f490dfb0269d0f14a1a29705540f7ddb3760a59c930ffa1784f3f3d1386e5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:51:09Z), 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/CAHQJ2166049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc130fbeff1e1b2ba0ea005aebb3aaa8dacc75110e59bd484f26fb067b62dac38. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAHQJ2187655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d77cc0abfe7a45391bff6686333e810aa310cd02b4a82ff5d89760df2966086. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/CAHQJ2187882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb22d550feca96e93f8aef0236abe1d042da04fe8c05afa8abc089c8b2f11d9. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-03T01:37:49Z), 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/CAHQJ2187644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e4ca86e6afa200a4ea252019e76747cb3a117e9eb74ee217426688d52c2c78. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/CAENV2119666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f3a2b5d7ac9948feb330050b77800b3b4e6c5b9c122f7a9432aedd9bf86cde. 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/CAENV2123335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75ea85f68ef27782618c115422de44249800e92fb0beb0dfe871b02e88c57cb. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/CAENV2123374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe602a81a78dfaa6d4d3ca50c2ae902f06ff8f35b2ba71d983793f9806e5105f9. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/CAENV2123380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6bdab7b63a0b8943b238809b96697ad912f02d714dd40c2cde541aeee8f7f6. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/CAENV2123385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd009f4517b1fbccb72484518946baac2ff23d497424f23d0e35cdde01bed2d1c. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CAENV2145652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc80473f02c544dfe7195716fc3c084d10dbbd0b22e2956ff53e3e0d0f05b450. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/CAENV2147722.
I Still Haven’t Found What I’m Looking For
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499bc7ced21fa5f28be6d6a36cac2b9ee08b3ef9984bb754c446bd272e9de02c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:54:30Z), 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/CAGOO2127442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163928c55b3cb7a3c723de048037fe0ee2db0a01cca8f63c4aef60a52929e5b8. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/CAGOO2132921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab26adeef5c2657911640ecec3637b2f92b6c686c1b949d21e45d01a621dbee2. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/CAGOO2143671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016870ab3b8127734ea9f5cdada4e8e75fa74d51e6f9d9ee5693d85b69d09d2a. 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/CACWV2101223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355fe11f159a7032374c781745dbfcc001e3e31dbc57d23acd1b9a694684d848. 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/GX8LD2220546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ce9c0cba803e7ef5793c05597824552b09b5fea08bde5ab43491846f9e1891. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/GX8LE2227812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31415a652414979c8a40c23030d3977aed5fd83ead12e8c22eb8c837f5dccda2. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GX8LE2284901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d6cddc4d82b0caee0659b2a07624d08c39cf63585383b75e92feb21c7a91bf. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:24:28Z), 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/GX8LE2286362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4018645bc92cab601176b2fc8a63667aaef30cda71bc943a0dcc2b9b73e3764. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/GX8LE2233770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86be4f20b3cc9b5fb6b5a97acdb204cbebd72005d559f050a343ac9d8f216bb. 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/GX8LE2212625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcffcf40477616050dbb9fd044de60bb5dcde3c8816496cc421297eb3a556798. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GX8LE2273637.