Supergold (Europe) was an oldies radio sustaining service originally operated by the Telstar Satellite Music Network (TSMN) and later by Chiltern Radio Network in the United Kingdom. Originally devis
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 0x404c52763793daea17b376ae262448f701fd08cb093c5f07e54040f5fdc51e2a. 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/9c4b7375-3d0e-44c9-b99f-d850e039ec58.json and https://artists.proofprofile.net/proofs/artist/9c4b7375-3d0e-44c9-b99f-d850e039ec58.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 0x54be080fc20dae4573ae2af92a89bd2a3c0c168472bdd56b14172ca4ac53a080. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTB82297901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7330570eb60da0b203407520b8787223ab1ae67d5d9a78e47af385fdcf0946. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZHN72313153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb25c8d1bd7c7ee07528685b2fa018831a508d29663a46ebee2318316c56a62f. 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/QZK6P2301236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222cdd22b639eb2e187c697a47d7683ef56ea545083fd84f3dc693947350230c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZRP52375023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e55533c538589959b390d2e602995b286a00f776f9dd78ab0bd4373e9a42b93. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:58:47Z), 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/QZTAU2361686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa791434b4a20f21885086d733a947f627fab06aad2590f0c82231c7c9fce2da7. 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/QZTBA2375040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff96570f45e25b67a64609943cd4c3429460cbd300261915d6841465c668c122. 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/QZDA72486229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d4dead68985a196243d4c570e2f1deb4b5aa82b7f1173b879815385379cbb1. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZES82431197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b81059cf418a52948edd08c46a446c7e63054601ba75fbfd99f0f29bbc4343. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZHN92458202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5619a1a57368f6b7ebfefe9c30e3272037a7d701a10127a20fb4ffba7fe1222a. 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/QZK6N2436309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7817ea8171db600b6c21c6f3631dccc29a3fd74c023ae1f6b6c923b445862f3e. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:44:00Z), 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/QZNWQ2404254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2566427145e511fd71d9800745122be36ea1c4b3bc3931281c5460fd296f1007. 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/QZTBA2458172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7965c59c284753792275102161bc620e383aa213ddc72a69c10d34a97cbd979d. 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/QT3EZ2492107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe692a67f355c03e793693d559db6b5dfa580764950cd1d7762e9fa27697f2af3. 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/QZFZ22549469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2688f1e7fcd13c3bcc170f0424f7c02291d50a0b8caf0a076b0d9d50fd31e293. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZFYX2428359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff96570f45e25b67a64609943cd4c3429460cbd300261915d6841465c668c122. 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/QZDA72486229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea7d376c202557893ac6e67864d41b5d6217b8eeeb40773888c9d499be53583. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:02:42Z), 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/QZWFF2394172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb424251f8c86e345d678155f3757c9df27c7fd026924e340b5c8bfaf92b6d4db. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZTB52303036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d4dead68985a196243d4c570e2f1deb4b5aa82b7f1173b879815385379cbb1. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZES82431197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0ba3731aa64d776411256947e0f5609f826e301df3e1b57242c2252b626bf7. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZWFK2333999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ffd51906cacc035f1bcc93607064db2dd613afd9928da67ded371878fd02db. 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/QZWFJ2598018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9db1e17fbf30057764cdf248891453e4869298bd94228b869f3af495467627. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZZ7M2596090.