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 0x77911c6a5267e4e04fc5c44fd442b009eb4c1182c4d5f8b41a793ad4b86c45b3. 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/3efab789-97f0-4c20-8333-5fc114c25119.json and https://artists.proofprofile.net/proofs/artist/3efab789-97f0-4c20-8333-5fc114c25119.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 0x3f547c9c80fe6c615f12050f5315f318d3e4eef83a8d42ac24395613240b0966. 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/GBSMU0050361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba145846bfa0fb931d263ca8df75ea7706de306369c2b369c2e198a2efa86a7. 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/GBSMU0050362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c481a9592d516abbfad9aad22b4db803d8997eefc189abe75dd065a8c11b6b. 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/GX5MX2113832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde21edc9c93d08c599b2217401212af33fd263282c3e7960850e19fefe5e116b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:07:10Z), 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/GX5MX2113833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e47962b92802245a06e23169d7b7e365e821297d1254ef3496ffc595a38ab3. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GX5MX2113834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e268414cf8e4b4962f765aad49f3196dca9ca8cbdd53ee9f526a3c81d1f52c9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GX5MX2113836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4588666c659e22faa6eaa878aeebd5c066bb09fdf5d2b89237a0edb0ed1664a5. 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/GX5MX2113838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6483e0d8b7b2a30c9af7f9e8f2f8b3416c90231822a3a0fbaf86c4b6acc4530. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GX5MX2113839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2b8595465b7c55539fbc9e26d7edc87f1e52be8f9359844d535bf4cddb6bee. 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/GX5MX2113840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7b9ff9f308d37d447f1c9b501c371860bb7797a104e9c6b1e1487617076153. 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/GX5MX2113841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba3be0fd5b093c31fbadbed36dbcc524303979d1e39fd0b4ab79925b2ff83c4. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:23:06Z), 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/GX5MX2113842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472d4ad7941924f4464dcb5e7b6bc8296cce16a3fd1c9a862b540267f22deb87. 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/GX38U2250693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5df4670c4fb21e093507cda2ed13106933c168d88eec84ea9139c34e66735e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:48:22Z), 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/GX5MX2309539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90b012d9e3fdbf1be39783a68a9d144b94bcd0fe34d2f942f27db076d236c64. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:49:08Z), 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/GX5MX2310948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5859a3e0824dc9339ec2fea16d25c96b2886253170343bf6b8829c4cf99864. 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/GX5MX2313785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614dedb7c49aa213ffa98bf2572c7d12ce98736ada80a9d3e4ded5768c6b0c17. 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/GX5MX2311319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d79471d40c78a1d78dd2b6e7349b1a3333735c0d050ee9651a9e4eae9b8cb5. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GX5MX2381687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7775fdefcb8d680a8d448defc7a13a07805ca9119e41e769bd764f7f8f16134c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GX5MX2305998.
hopelessness - Slowed and Reverbed Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00c43238c77831b05691f28a777e81228253efbb73975fcf103a4144490e55f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GX8LE2444014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fda148a16b015c9a6d09b6e461511ba4bed439926049ab552434e8a88e7aa97. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:06:39Z), 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/GX38U2415440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5303e34371648b08da59df2de023854cc24845edd7c8158035e9f184707bd7f7. 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/GX38U2492703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940c3afb5730081b7140581053577dcf5e85ab4b7c3da2ff8d21ba7a68cac71a. 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/GX38U2484098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e534558be96f1cde6c76eb8146f4dfbd55dbba64b4b019ab1835eba76106b40. 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/GX38U2435362.