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 0xc7d6011cf1d50734f8fc87c72b478635a9e6c10c21a06db0cf1b0e0533da5ff4. 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/3154e45c-5095-4af9-8596-9508fe10d5f3.json and https://artists.proofprofile.net/proofs/artist/3154e45c-5095-4af9-8596-9508fe10d5f3.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 0xee348711b6bfdabf14837a63c6391bbbeab442e806230308f90a91c4403e8655. 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/DEB641800301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd250820633d68615764ff67b4f9d65314355bc9148d95fee32f96a366c4a4751. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEB641800304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af7d04dd6764e3761b498b531bb3e0b9dec138264811c1714f21bfeaf4b84d8. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DEB641800266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6615db1917e7f87e37c8d7a837451b718c52ce9cd9d79766638972d96028d315. 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/DEB641800277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64604ba3576fe26ce1244d00e769cdf4e059a4d2f1aeaca0c2cd1c12161c551d. 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/DEB641800283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09240ad15824fc45b3f9c41ab16a5c011a14da1c2b84283bf132d93b9c8a8140. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/DEB641800287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39224001eb42dff54496f40775927b034589a346113a22210698521daa7ce8e5. 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/DEB641800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ded56c9238babafef14bf188555f6ae17fdd841350673e7264c57108ccb12b. 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/DEB641800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23d1bad18e6a70a0ea859f9a9fbd277c3ea4525b1bbd32381b99bf06cb3b2c3. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/DEB641800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4196458db539e3ad2cf986126ea634113a68dd59ca18bc2be1f47a70052e4c. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/DEB641800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985eeea50a9ffc8e18b93a91fe5b4076c5b27367e81847c2130474d222112309. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:32:20Z), 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/DEB641800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b5462fc06d3ef51151c3f34dca6f569d8ed24e6253f919a950d558007c942e. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/DEB641800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0e22febf650548dc8da3f9f225f5f03e3cc13f7a82cf509184d93f65bc4934. 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/DEB642500002.
[Green Day] Good Riddance / 21 Guns / Holiday
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa4bf8563e9d3c7656f55581de2fbe26a3d1f63459bd4651b36a0f2d781f078. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/DEB642500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00761744a79f71759365d3f270b2e981a4c4cbd9d5c6238d36dc4750b2528911. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:26:33Z), 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/DEB642500005.
[Boys] Tearin up My Heart / Want It That Way
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35262db48436345ef6d5acccc30d22c890f97b2625c74b7ae57fdbe73e62d859. 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/DEB642500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116eee9a228944522af1d3fbdea3c380a1d988b377508dcc7ef23599812ecb9d. 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/DEB642500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c524b2efe74e035edaa29093ca18633201da8bcd3c93c73b611b506c8c6c55. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DEB642500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969a442306f860b43cb324ca5975c5afbc215231b5ef4d8882910002397893d3. 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/DEB642500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c028bef170a825d23f5506aa6ab902ebb2cfb47b6c63905d76eb461a80bffb. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/DEB642500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ba798e4066d178b179efc95a1393ce321ada1159c0a982ac09cc63549dd2cd. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/DEB642500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dccfbecd33489a352eff5debf28157a83894774fafcaa0a03c5092435818637. 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/DEB642500013.
[Outtro] Freed from Desire / to Brazil! / Bro Hymn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa691b256d60e19f2c8bdda3947ed3dce52134fb2370fc406a3ffd811e045830a. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/DEB642500014.