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 0x3266b599b5cb9007528dbbdb5bfbee8d79ab8497cf444136af0db80289788a07. 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/23e9660f-d9a9-435e-a44b-eabe20ec97cd.json and https://artists.proofprofile.net/proofs/artist/23e9660f-d9a9-435e-a44b-eabe20ec97cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Old School RuneScape: Between Two Worlds
Old School RuneScape: Between Two Worlds (Original Soundtrack)
Sheepy: A Short Adventure (Original Soundtrack)
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 0xccb80f66cc55b08eaa9c2ffac65e7947667be8de35b0b226ed56d4e8822029bc. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:37:56Z), 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/NLRD52257878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bb66eff501ff4cc5ad9030e01684db121417b19b8d0410d490524e4376d7c3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLRD52257880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4317852e5ba290960993ebacddcb724a8a30cd9a1c59c43dc300801f9976ad6. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/NLRD52257881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fcb4d8765006e46a36d583de1d48ea549ab07c28e8480f280107edaede8cf21. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLRD52257882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239c4c42d52ec7e77f09a9b760483e03af8222b81543ab5139a2c4df9b749883. 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/NLRD52257883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70f857593791ae8a3e582a7c618afc7d856544e34d1bd6d11cc62edeeaaf5ac. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:53:24Z), 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/NLRD52257884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd295759081d2c0bb72b851a0d198aa34e2c95cdb97450741d4d9536af63d3189. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/NLRD52257885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7821335d16de30f266edf7c0eaa65819fbc63b990aef406e08221b9eb3726993. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NLRD52257886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d1c1c273a7dcd5b1abc0956fd0cc3df0963db6d3677030b934f828a16dd546. 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/NLRD52257888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfc29a7fd39676152f0b7451ee95446cb37320a54a1ffcf10a5eb6a9ed8971e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:06:53Z), 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/NLRD52257889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f9c76022de8225a908a90020e2995d1b815c06ed252bf9fb797450b592c636. 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/NLRD52257890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0968f78a2fff9ce0232b0202b2bb38394d31e314a79d3876a867521773ed013. 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/NLRD52257891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9004869507518a379dc75337785dc8cb0e6f41de63a91ccbab0d26ff47025ff7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLRD52257893.
Fluorescent North - String Quartet Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005ff22e531296a0a2dcbd860db7a3a0cb7ff1ef451e533b6f9e74a5072864e9. 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/NLRD52257894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f11e60063b47a2716ea7071b6c67e03cce2da142607d4c5e4970ca28371b1e. 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/NLRD52257895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177effac041a3701ef5e9599f53eaf5ee4977a72ffc7e4875ebceecf15bbf796. 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/NLRD52257896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf252a73b5e1516d2634420c34482c83ced4939b840ba21039284151a3a0040c7. 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/NLRD52257897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9458cf41a41d207912f45957da3fd2eab83c1288c303b1cd45fbf7cb695df139. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLRD52257898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840045664ad3fd0b05625308ebcaba352015e6bfd9ad9bdf790aa2704ac217cf. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NLRD52257900.