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 0x8981fd34340cd2647001c65f0ab4dfaeda8294f4a470fb5389ac8e641c7dc11d. 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/fb1b9858-dcb5-49eb-a621-61a10faa493c.json and https://artists.proofprofile.net/proofs/artist/fb1b9858-dcb5-49eb-a621-61a10faa493c.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 0x347f1d123481d307dad0c07c3b6abc93d5b5fbe0bd85158133461703a219a2c5. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:06:35Z), 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/QM24S2007226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb32ddb13c7216003ca14d827dc0fc72b7d8920ee37af3db5017cc9470519811. 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/QM24S2006923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4aa545f41e6e4ea187b79e2189644dafa5dbfe90f05ce6f10c048fe195e21d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:30:53Z), 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/QM24S2009131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d63c0b12ca116ca4c080e9985a37efac515fdb4019bd3bfcddff88dcb5d1e3. 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/QZES52115250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eecbb889587831432876ad39f7f7b697fc3f5ac8cacd555abaeee841b529f68. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZES52195875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e2a3a0c210529779c2df2c71874faac4c3a2d09ac6e8388fb935c90bf2b4af. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZES52115255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5a24af0ff36dfe327189623eb2b24fa33ca89e76c95f3ad68af37a7f9e3638. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZES52195879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52df8d03f531da76a026e70e388e0932c035562161ba691c187b43f3514ff15. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T04:57:45Z), 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/QZES52195880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce4f675c6052fff6a817586c1f318e6a7bcf8b245baee28d52ffc710f235547. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZES52115266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4e1a2d24bc91b00872cc668458038605ef73baca36f7ed10a66d8ab4f0e898. 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/QZHN62160324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10da8e510366d63101966163a483a146d34ca75b2f10105d01700c47eca22983. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZHN62160325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ae4a4325ad76bf95abb331c6e99851b2e7d0d8be585091b2073a9137b6cf7e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:52:41Z), 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/QZHN62160326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1bef8da6829cb112f1a92614e6d689df4f2ab9cafa07f8749ae26ec61bd2d5. 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/QZHN62160327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bcbb8eaa9c4fc20237d8dbf465d5a09db918c14f812ae673fcbc7721651801. 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/QZHN62160328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2dfb569940a9c301e95c1812b1ec98eb8937e212c467877d65ae58774992143. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:06:57Z), 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/QZW9K2359382.
You Still Loved Me (Hand Over Hand Pt. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5849a4ff9314e545f5c4eedf46145623c957ac6722385498afd194735fa8db2. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZMZ92484968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2719e91a6a6e669513f73215853d38d8f35ff9b0cb84f5b717a555711c182ae2. 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/QZTPX2488948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2719e91a6a6e669513f73215853d38d8f35ff9b0cb84f5b717a555711c182ae2. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:47:09Z), 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/QZTPX2488948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0e1697e02941ed07b837e7d38a99241ae5f3d48a112fe22dfbd481f16c3a3a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTVM2477187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7b67649080b4911e7e34f0c9e138d8b0b71dbd656347adf71ffb42a13ac479. 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/QZTVM2477188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb883dde1bc43ab999b4c9d810d2bab1d92b8b6ddaa10bf284b3324954a1817a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTVM2477189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ec622bb1e6894d688498de01a64324c8a2a91e1fdda113a767937d5b64c6d9. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZTVM2477190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9590aed05cf2e8f6ea700bf0b628d75ef64f9ef2a43cffd9f8939681684657. 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/QZTVM2477191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcf20cbb5d03c2f7f0618032d52576da42a7e1e2360e093fd06d044eca33e9a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZTVM2477192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5849a4ff9314e545f5c4eedf46145623c957ac6722385498afd194735fa8db2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZMZ92484968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8faeb2ac00fc4f6a15af338cb378a84ddf2027d7f8db3a5d1b8f9983a6c0a6. 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/QZW9K2359381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27bdd023102e4e29c8534cee1309ea1a0e88d4978941097dcc8d3194d6cc7f1. 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/QZTVM2477193.