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 0x3b325a1a279e9b1e4081d40b340b7175def4469b17206ae0e0213a5e4b6ad401. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c53ff87-1293-460d-86c1-1b01d141674c.json and https://artists.proofprofile.net/proofs/artist/9c53ff87-1293-460d-86c1-1b01d141674c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jin Kal Rakhi Meri Laag Gale Sun Binti Meri Vol-10
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 0xeba359bee895a3a4f5eec623ba9c0d0a81f2c927f656900dd779ff29f6d2cf0f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/INS180261769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131e67f4baf89bace6376e40f61ad4bffa1f8e020d533e0b7a375f88c35f80c9. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/INS180261770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea39718f13d83c32eebe907e7df3affca04a4291a22e08a81cb479264e726f6. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/INS180261768.
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 0xaed4351a1679bf9868f632e68d04a48392908bf026e37a8c59a6047c1d1871a6. 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/INS180261771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6752ecabf98c6bbeb5ac73073d76b16f7f9bbf3b0918f4b8af242993e7976b95. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/INT1S2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3a73c40b96679e96003bb8d126ba60daa708c57a7118af61d4adfb4d2c5dee. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/INS180261154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a245d0072c1e739678198eddaf6c799fcea6823ca35a8c2c170d12e272710e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/INS189913699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28470f7359cd0c198de2950736176412fb8de70392e678a4c445b3ce15904db8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INS189913701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74edc12b0f27c0eb73d30a28b704801e6f735f86b56a91fabf0e0fb60c1075bc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INS189613304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b90cd94b3a5123b8023af6514326eee81af3cac602519abb1111c30a79f6a1. 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/INS189613305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a909b6a6ed3d844e22d4803270033bf3b81ec04c86ddf6862645d3817ed2d1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/INS189613306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f9df23a4630467923822df9b44a954c469c2c40a3147bfa90b94b56c1d45ad. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/INS189613307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb470ca072d615a6abaf3a01338448d50883df099e41a52bc0a851ab8553da9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/INS180261155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dc87229a065c73f3cd6d75eb7a10b0d66cb7e83be536ac2a561e1a23c7ed7c. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/INS180261156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684cd812fbf2b9c131dd3c6c7b6c8f02a25d72f1f06a97e50ddc3ddd0dec7b0d. 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/INS189912683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9e315fed39a42848ea753cd8d35fa99b8c368d49c158e04904c4351c207c6b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/INS189912684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e46850482c55891463d4f4995cfa943fd282a2925b46ca440950db366de2891. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/INS189912686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87b95f6b0c7e3d57d86c0afcffcdd6ec320e5dcc73e92e27c1186c285cf5dad. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/INS189613303.