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 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 0x07ffc1612360f89ede7de6bf8553d4de8d6315ed9f719fdaaf5df781a3fe6671. 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/6962cd41-1c3f-4a82-9909-c71efa1947e7.json and https://artists.proofprofile.net/proofs/artist/6962cd41-1c3f-4a82-9909-c71efa1947e7.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 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 0x3653041f97221c3c0545b09bd7b9ecba1d1dcf447761bdd26cd21d63a07bbad2. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/USWEX2200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3c704b0a92278c72addbdf8415b62cd6ae49846b48534ac31de7097ab6ea67. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/USWEX2400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7d699fa9ad3da0d28ea79e85a58fb95da1ea35fc5f1d7cfe3f68b9dca0ec6a. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/USWEX2400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb1567fe70c7db3fc647522e9799e16689ed1c9e806a99d67d4daec5bd41efc. 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/USWEX2400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7d699fa9ad3da0d28ea79e85a58fb95da1ea35fc5f1d7cfe3f68b9dca0ec6a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/USWEX2400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9506f622e354e508a245eb2b15d363336ec1489882b21190c485da368663da9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USWEX2400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39535b3f34ac47b178441a2bdd1010ef4b1cdb6224e0aed1cfedb34ff6a3a514. 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/USWEX2400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3c704b0a92278c72addbdf8415b62cd6ae49846b48534ac31de7097ab6ea67. 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/USWEX2400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb706ed159cc486ef0911c3a9846caba81ab50283245ef9e2b1bfce0b3238f2. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/USWEX2400055.
id rather be a ghost by your side than enter heaven without you
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3189fa9ee8a606125d241a75e29a02aabe0e88dc4a3c9a1885a3d080eb1c0c3a. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/USWEX2400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5787bb5b1454ac1e56c1b6c8e5ee6a16bc7c3e36fd58550079f9da3d5a02018e. 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/USWEX2400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc79f8c95e5e17e91b4ea486f0f7ca4b86253af4d171f9f0f7db41b2e3400bbb. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USWEX2400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e05afdd3ae24f94353341089b6b449648cab2141d8e86fcd885e0fe5402848. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/UK9AV2400591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b6636c35a856f70045152900d8719416a8dbf49739a8c90b171488958e7754. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/UK9AV2400592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a9c7019564b8e4205226b809c495243a2f6347f5e640dab5db6d85a519e020. 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/UK9AV2400593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dba60ac047b69d70e10a1f63b9187aab7f50577da880c71891c6a33239c9463. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/UK9AV2400594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fe10be6b566d441deec7a648cfb45cf971ced1f01d67baa56de92c87afb693. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/UK9AV2400595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e5edcd37af7217e9724ff771e310949b31a620839c1b7b5d50f5bd9c731086. 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/UK9AV2400596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbc9ffd50aa12edb1667f3ec8596f97801a59d41e88a5a7833316b1adf02853. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/UK9AV2400597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c08bb8b5e586bfb2f1190f6a9ed8ed75b9285820cec5efd0f78f5c22efcb38a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/UK9AV2400598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a8f5b758edd74c135328fc63b1b900c48d0fd1293cedd024c40135a6d05e4f. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/UK9AV2400599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c40837da422b4dfc1e596f7c37ee2d32a91c908b436602f5bb7339067d46e9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/UK9AV2400600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33bc923ff0658b1cc0c74aecf647b6ec124d673323a61e0d74816df88906b8a3. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/UK9AV2400601.