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 0xb938a816ae93179f31bd3b5e060728469d10acbdf50004f9eb4eed3bef24f0ee. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e937b82-73c4-40bd-82d2-0cdfba4c49ea.json and https://artists.proofprofile.net/proofs/artist/8e937b82-73c4-40bd-82d2-0cdfba4c49ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Inteumental de dembow (Patilla,molly & Coco)
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 0xd1a3d13c42dfa2f49ad1041bfaac57aba02a51ad6d6c111daf85d725aba200d3. 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/QZES72588867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddcd51ffe280ef7c12efed75f610efbf758b7abc76a65f4979b53a08e36edd9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZES82545405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d15f32e4cf3ddb680a41f7851caaf039ad0528d39d73656ae01dc9e86bafd30. 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/QZHN92547105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cfd218695d59902613e86300c9f4c01dcd5c97f05a82cb4c90361dc33f30ef. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHN92544394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d29fbc1a806b7d14a834a71f4bcebcc0dfd7722db42cadd131ec84c50107c66. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHN92544403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316de334da1bb806f3748d419189d7396270bc4a0edc9a835efc1443ee70cb24. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZHN92555919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb296afff17b1c064f49517a1b48b8e263594c292c70c01c9425c0f86e9f73883. 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/QZHN92554682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f361670c47c6ccbf3365947a53cdd181ae2a389710ae40ebe59d689ecc8cf8. 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/QZHN92546952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09aac1b367c6d3e461c42c843d1e533d61034b6b77db8e1b905917737ac456cd. 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/QZHN92548623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ba66d78c60f276273e9e906b7c883b4e4713f9ad97e8e5f5250cae9ccf9ec5. 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/QZHN92541181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e5ac92ee0b3860fc608e7c4510b2c264483be172b52c7d4c2b8f0eecd5ae4d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:49:22Z), 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/QZHN92591908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30945af46413decbf35dc8da750573af2eb2b415b6970d0c3cd4485f954e317b. 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/QZHN92547108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93564fe9a0a2b78b6a23dcb1a2125145ed4cd1a8fff0dc69dc89c30b81c89ca5. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/QZHN92547107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3556891e2ab4f6b189fdb4bc7829e116f4794653c044afb67c8fb9843da71393. 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/QZHNA2507006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565005a445bdc699205015a7b2ba2ff42a43a6d3ec5a394870adc19c3c3475cb. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZHNA2585035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1beccb5c0bcd3842e1c87aaf4df7bd7a18a16e0b832575949be7a115d10ef2e4. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZHNA2585034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3382705200c18330832a623af072fa983c039a518a2a53740fe9462b755f6d6b. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZHNA2585015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc0e39ed5ef4676182562e705f0a1c4805bd59158411ec5f4fb8cdebed69184. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:02:31Z), 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/QZHNA2585016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc424e96e1ea293bb2410e9e58565e212d7b5fc0ff7bf5aac4fdd8425994a29f1. 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/QZHNA2585037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e320abf9cb59d3f2be918c1ac7811f7c0cdb07a22365625013721e0561f25f. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/QZHNA2585036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa01d0879da5af4054e396d755a1d67fcc1f57d4cc5355561541785a2245a4f6. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHNA2585062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c87897a4efb45901f947d59d19073428f839a5f41f770a5d639eb77702033ee. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZHNA2585038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12f9cffff202bcc32982c3b1cac6c5f31a6c75a363a623d8e97eba8897bbb9e. 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/QZHNB2511637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb7f773f74f634699cfe831d02d73e53b98f27b001070d494c0938fcd7f6959. 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/QZHNA2583173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1560f68096a5bc8e9e98ccc16f7b131cdff2bcc5ab45cc350cd103a0b51f3965. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZHNA2585032.