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 0x03b0ed62de324cbc35e89021339f0545f0aa4b44a87552ffd1c1c2d99db5c163. Chain 2 (Bitcoin): anchored in block 953736 (2026-06-15T03:21:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/998f8321-e29f-40c6-b7ef-222e081fe3b8.json and https://artists.proofprofile.net/proofs/artist/998f8321-e29f-40c6-b7ef-222e081fe3b8.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 0xaa708a5e1e44e4c75046f5a8e96c027507ffa0fb963f6c53a691e2325ac72ef8. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/CH6542513090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3bc9b2b397da46bb29c3bcf245c941dea80676e7ba51de0d268af813e4d457. 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/CH6542513091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461f55a05f2344de85a20764ab2b0f768e3483aecdc9d8ff2372069049a36954. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/CH6542513093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bdcf01af11d867c97de53c35824de5eb54d10098eb2709e5ba814d55a8d5731. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/CH6542513094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00ee0d53d47a3f99199bbe4e4751ba910d3b3fb1bafdf9a32126c594faee0c6. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/CH6542513095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc99740fb88212b9b9c5161794124dfab3c879e4de8ab02b02f4de26f1344e0. 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/CH6542513096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297cae2497bab5b3bb5cef0d1b0bdd8d28cef1c7f454e48abe11e3c87983335d. 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/CH6542513097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d346503c26eb45d6a91e9fffbaa00394f0488a8391567cbb4be0b9f694c856. 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/CH6542513098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20a007116e7bc3eb36ab1eb34e8e91862ce0e5c58096131d195555e2834f788. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/CH6542513099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f75eddc899c7510e18039644ad2442af5df350c284c96834baa373a0d2c630. 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/CH6542513100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028f9c4aead489f4a61bafd8230ea57c1055eac45a5dd501a54f737282ba5b98. 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/CH6542513101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95662fa490221a2d14a4ded97efbe48d8d75bf235ad5298e9de67d8f60a47c2f. 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/CH6542513102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f33699b2f42a3f6b6f782724256031fef0ca6ec23a8c6352a3142c836b2c0c. 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/CH6542513103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bd4c50bf50a579d4a419f5b08b101cc2485284534217d39aafaf3718de3066. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/CH6542534517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bde2be095226ef7f699b911d6962bb77128bfb637a49d6fadc191dc96b8c21. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/CH6542534518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ef6bed6ea172411aa7c9deddcc12c0dd9ba41258b44ec86400483f253c326d. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/CH6542534512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abdf72a240af021a67d738291d803ab07b0501d6465a7d4526d50bb7d02cf6b. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/CH6542534514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148ea64347abff97438a9cbec13ed5f6de28b15359349fed9570a25afbe25f0e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CH6542534523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b49e0b23f88963695e85e42b5314c3ba1850fa8cddc22a8026b06f66d811322. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CH6542534520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f6e6463f1540704e3e9fff363e299a4134fa78b290ae46b5f464e7afee756b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CH6542534511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2079132f7e0624d485a529c03228facf3ccdbd0e9bdb0596cf6c0447e13b770. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/CH6542534524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3acf4be00c47f76e78f5282969ac88232244f0ce66079e0b323c25f73d135380. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CH6542534522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba67555c6f418b82d55ddef742b5f6025bf7105549b0807eb4d6cac391201e75. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/CH6542534513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce632893f8cd02dc62d7aa2ea4de0569ab799bc5a16ebee46705cfdb4015ae6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/CH6542534521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5893c0b11b4d8ab07db19c8522601094e3e0752c50ad08577fbe672a79fe04. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/CH6542531107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77e11507d4bbe722068294fdbef99f0240d7b1054212b79abf1088f4ef581cd. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/CH6542534519.
The Glitch. (Deluxe Edition) + Instrumentals