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 0xc2b9d8ab8732a6c84c3ba39c58e5a6e90a1252a9bacd5156c322c21267fe4e32. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91c4b9da-3deb-4fba-b20e-169ba3465084.json and https://artists.proofprofile.net/proofs/artist/91c4b9da-3deb-4fba-b20e-169ba3465084.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 0x098b77bccd6726fb1e59ea11dfd8bf38ec1df3b3b82e7531407cf68b53f3965a. 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/GBSMU9525062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef42cc142fd7b2c96df786dc461547b333d40ee72c53eb2949499734914f386f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GX3HH2198442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2c1b58bb9393d51421c4f371bd1b298858315ce723fd4d21910a96569c068a. 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/GX3HH2198443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29dadefb555b145c56d5629b17477d21ea47966ae817c67d05c295f7e8b2e7ea. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GX3HH2198447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c057a58e2da2885d023ee3dd3d4ec297a17d247c35802d33899d31c1fa2c98. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/GX3HH2198448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d87a9a807dcd818b46ad6720d7418b96d1d5f5762168d17fdb32a63c62cd6f1. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/GX3HH2198449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2dd00c787ccc76f80fe5850b1f86e618fad4a697811698930d5c272aafe4fd0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GX3HH2198450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe3c17c70777a665a566593869b68351017fe4bde5af4da19ae49627a735484. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GX3HH2198451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa010c3178142fb7d9c385697a711b5ca0cb1971adf6092122b0305fda26131a8. 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/QZK6L2270287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926d054fc6529d1cb74dea5786f946430d429c0ee026e00c5f96b0b8bcdbb207. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:51:50Z), 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/USLZJ2349680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6f68254a0ddc9b5c65fb4d4a02ef625900200e9a434cd09e9a7676b8123985. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHN42361543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0cc8c018901d39c3b986be0732cf99075028247ee706005c5dbe096d6bce31. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/QZHN42361544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b79e0421132c4f4ecd32a9a94308a1eaaafc7b7e89a382f63693668089475e. 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/QZHN42361546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba2c5f87930e42c48ce06de1ba6ea087b4bcefc11fb58e4936ea1e3ab899a3d. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T21:00:47Z), 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/QZHN42361547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd112aa2f6ff03945ebad76312ecdd1da6e63b0dd185f38d70f4a355f53c5b030. 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/QZHN42361548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c625cd0758e8e7d2a469d0e3d5bc81ebf627bc18561f732d056e0f204484ac. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHN42361549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e0abada3694730f0807076cfde31d4ec2784850323e8e45723605fc43dd307. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZHN42361551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b50780538f790942c867dc35a34a73bcb2e5c1740829a8baad95e82ceb5731. 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/QZHN42361552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfc53ec4ed29bcd5e3ae4058a525dea1be7456946cc30efcb983c99dfed356d. 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/QZTB92444482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ffd2b6bcfae771db43d3718ed818f151c65a9ce76242e9940ad800fc6e7da6. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:29:00Z), 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/QZFZ22533221.
atmospheric sirens (disctr4k remix) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec93955aeb34661c97bd41e486523fa36055834fdc21c9820b24c4e337bb5aaa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZVEM2361955.