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 0x4251b8348e7fae28df6c02f15fc6109be05fe6e8a2f52e55e64768778ef4aa1d. 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/b9dcf266-dbbd-4a84-8d36-b6bd33a30b5b.json and https://artists.proofprofile.net/proofs/artist/b9dcf266-dbbd-4a84-8d36-b6bd33a30b5b.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 0x7322fd1ad99a7b6076bb98b99f704613f95eb48790aff15b39345726a217dff4. 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/TR0011500123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba586edfbd858c7051f260220af8fadfbcb41f7a6be7fef1b5913dbb955077d. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/TRBKJ1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb902ecbb93b500797001d4e76074fb48cbb0dc8f3cfa128cb2d2054a0ccb39. 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/TRBKJ1800067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c40a6deead5a49fe489428a6cdc789a57c10ab8d5d889cf7b2e6deef6f759e. 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/TRBKJ2100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b21a833ce4a7e214a6270b58f44b9abb721df2a9930d32bb8e27676bbe664d. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:39:57Z), 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/TRBKJ2100082.
Belki Üstümüzden Bir Kuş Geçer (Akustik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b2f0d80323529a0e281088a45d5584724a1b664a8ae90123b4acf3e81d6432. 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/TRBKJ2100078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455f338da9aa3fe85c91f087b541b2817389f298b9466de48e523d12ab1b3b7b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TRBKJ2100074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab33960f94c0b8e7973abb17608825f4397ce8bdda4a0bd2eff0ab6c1017bc1. 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/TRBKJ2100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f0dcc7b32323f4206d59cd1180a3b0704180d7dd36f2035e78b5e14e1c213e. 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/FRX872202210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fbc084dcc3c58fd3cbc25f5fd8d7f9a7c258067091071001245e57891b5e29. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/TRBKJ2100089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa864dc9cf49b5a9f8f4e30418d5a3ddea9b546d71cd62b2be756277a5f433b78. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TR0011600889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286a411e3d5ab1edd15a8ee166ba74526b1ad8796d0efd2922445606f64d94a7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TR0011500585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea73bb036db69909c60bc0bdee54999b4637b0cb230cc530b48a0d388d8ee6a. 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/TR0011500126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee098457c0949824912b4457eb4db6749bf3c8122fc1d37388465ad29ef439b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TR0011400226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc5cea26ee7b921eb15f6e0b4847612009383c8e77b559474428d5014d9187e. 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/TR0011500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165461a76d1c8a159b6dfa11b450d6118917f57370f3a5ab865a2a9455e7fac6. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/TR0011700433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7885846a76364910a56ed6bc934230820357b6356fd09827e25efe7964fda1. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/TR0011700432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f00331193e83da70b60267726df78bf94704197dafcec37ed2ced6cba8c8d32. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TRAOJ2200008.