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 0x13b4d95705dabfad25025bb0ab80a52c2d46fcac95dd56e49f5308cd36fce367. 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/95567bd1-9481-492c-ab6d-aae2b7ad9e2c.json and https://artists.proofprofile.net/proofs/artist/95567bd1-9481-492c-ab6d-aae2b7ad9e2c.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 0x83349d1e496e8c291773daa7632c0b84523fc620def27feb382a4dca526d827e. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/TCABN1320776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01181fce1c2901bb7d4a17443da5265b5698fca7219fba66d760d5f4f0c0f4f. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:31:00Z), 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/TCABN1320784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5351aeb6e31751b177f7a75051fd0698b3acb6421bad02e66480c9b8f64cf1c. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/TCACG1583729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a20b69b888ac93b2496517e8901f5047bca9bb7688c41cf0ec367a950a69a5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCACG1583731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adec8752fe4afbc1779be0e8a98d2e17b4b4072f0271241e32050debe4c1b40. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/TCACG1583734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dba3796796e5404d48a157c5516b1022c5e41e6a824806b09e27142150f25dd. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCACG1583737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd257ca6e56af514b1afd1cdc61f5b270d56c815465eccdc4533ee0b297e6994. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCADB1757016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23aa3ae0f2c5f6302227682c1439a9fafad3a5f807aa2df017940e444dab72de. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCADB1757018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd0a5009c1fcc1eeb71d1d1f14ff6be1aa09223d139ce5ea2a46cdde1e9b22d. 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/TCADB1757020.
Þögn (Single from the movie "The Garden/Gullregn")
Þögn (Single from the movie The Garden/Gullregn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88eb4f161553f14851247516f3fc6d850a55c527f40c5fada422af8ec3b496b0. 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/ISV441979801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462235304c693376bd98f0e872a6b5c1221b1407224be4d23d61565c2eaf0035. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/ISV982102302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556134049067b2b456312bcdcbef6ca80de3f214cd0e900da046275d5749f04f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ISV442002303.