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 0x589a408507334dc28e5a770cfb8e8a7c25d982007f7b223463ff02a5a35c69d0. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8fb523f-7b75-4d8c-b735-9df31c86c73b.json and https://artists.proofprofile.net/proofs/artist/b8fb523f-7b75-4d8c-b735-9df31c86c73b.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 0x46239a8ec143c0284b5e97f443792520c3bfd498334b19cb52a7e1ee5f10cd64. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:37:43Z), 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/TCAJS2520500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cdcbe91d1bb7e3d3ee6fabc830de544741c641e241e7cc50571fcf4c4b81f4. 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/TCAJR2567504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3508df4bc096dc2911fae6ad0db04c725b92b55d1ddfdfe9fe56b1d3a3cc06db. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:42:37Z), 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/TCAJR2567557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff91fec87313fed4558d5313ca30d5adcfd49071882bbf85789ccdec85ab966. 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/TCAJQ2545489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293270ed00983c3ac734967bc2369aad44400ede950cd61d638d0af64d3a14ea. 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/TCAJT2583055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c117d415c1e872a9117cbc5d6579d19d475e3c90cd0289fc00b5098236b0769. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/TCAJS2582895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b5f6e9b5f3232ea3e5c9dd32e4b7c50679d06fa0bd81d571164ece83759b98. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCAJS2583123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee98f7e28fa38cd8613137921a61bc7064ebf1326bfa83328c275a123cbf3b5. 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/TCAJT2537631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192e8015c93c96f6a9f0085402987d9da894ed19b95380658fab7b6aeee38e99. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:38:08Z), 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/TCAJT2537569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6017e9eeafcecd0f1fa0a859403372ab9895c51f110560f818be3f165c8b84f9. 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/TCAJU2537681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c4826c7943d0e38e9dfd4e6d2b69b9baa0d5de65559b96043508956b701f49. 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/TCAJT2595383.
Boleh Merindu Tapi Jangan Kembali (Female)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228d442e00b546c1eb8369bf7ccf36f0ef6900fa16955f7924e95d5e2520af5e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/TCAJV2576126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfe7d76428c72d6f76af77e840e2a6ebf059231834ffaf965b5d9ab0096e10e. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/TCAJV2583636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34bbb1e600f23ab96138f7ab3d02d4dc8b2e2e83e21669b4327c6de0e3f30b78. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/TCAJW2515987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa739b0d86fd112b31349ce1eb93d77462284eef8f1998658a372be13a49062de. 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/TCAJX2516968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3e8cac4a6035357f09e7d2ddc621fa5c20248c1761c9296d911cb1b2d9f937. 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/TCAJX2517005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92229a16ea3a996fa5226d4e79a6ff1f3d1c90cbbe6896317cecfe92396a9f29. 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/TCAJX2508241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a8e6e2851a7003c5c8ab234ba4c5b32f994254eb8c8c82baf1d170108ff313. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/TCAJX2530896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc11ad09a41abae72830902612a3a41cad74a097ca5b6be2c45c8fd4808c373. 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/TCAJX2508370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757ab1ded2e44e636a8354054c57200dd43ff452bd4d0f67a7828e58965366a5. 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/TCAJX2508418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c20b4a2bd4fbeba0e864c5f5da192a944a17968fb6dbac059f47580798153c0. 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/TCAJX2508506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91e0783b2f3a90789d1aa9e022c43a952cf12cf560aa776a4b249a6e276edc5. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/TCAJY2586722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265bf65f715413c0737b96d5a9267db3f2a691c13c8866648b887a9318da1d54. 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/TCAJY2536986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767253879a12a37295ddbcd41d912c93782aac9bd9ec3074ac99a87f6605a5ff. 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/TCAJY2536892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c029d7cc3fa38395141330b498ce4a4046777d1f61295c71b6ab0e9def0e5f. 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/TCAJY2537041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede11d6408a4ae2325fdc4abee3fa4de84a5b2a225fc6a78fcf83bf86fa0321b. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:32:40Z), 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/TCAJY2537110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3948e6643aabb040a33d81e4ad1c06ea0a4992c09800528528c78dd983320a. 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/TCAJY2572360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233d9d4d848f4b8084b1dda5433460b9708f11cb24700db8492bd0dd1cb0ecbc. 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/TCAJY2577657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279a409a237f26494e0c1f853e413fe08fd0d2af03d1036df03661185b9d860d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:59:48Z), 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/TCAJZ2583246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de671342d9c779ed7619b8e62db182db7e25a1e1d08425f5a18954ee604bde9. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCAKA2508260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225874b7d8d8c355a7fbaa75e178a0e9cfe4bb367345dfdeddcb42b00d5d8a0c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QT65W2523511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd59d47f9357aef41dc872c01aa242031aab86954e2ec5ac2805e4c021847bc. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:44:21Z), 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/QT65Y2591902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe34e251be4525335236db2539c296630f0393f1cd3a8afcd1313aeb4540408. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QT65Y2592104.