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 0xf14d3db21998071301e1c04285bdb8f07ed0ab437c6a225b9c51b4adff774825. 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/c5f5d4cd-1482-4dce-9a98-3ceb7468e944.json and https://artists.proofprofile.net/proofs/artist/c5f5d4cd-1482-4dce-9a98-3ceb7468e944.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 0xdb60f934c32369082fb2f1b1e2f3f4fc199e54960edf31e51fb8928adef8865a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HUBLP2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0387057e1421ed2583a8512736a890cb25116a2f48c706a839dbc0f6ea6e24c7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AU3SE2501003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba6f5e8af79612212f1f35331547a88637c6c05ebcc28af738237700f131894. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AU3SE2402209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe25ffa34e82ed98dd7547faab39531a96a0729db031eb447bb096460d51320. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLAM42400311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4b376a66eff40095c95fe9e12b0aa292815cb7cb06d30c65795f48f92e3031. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM4TX2407956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc647ac363bddcc8c63e546bbb3e1db2ee3d4d42d850333d6b829e37783487de7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM4TX2407957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7a30a60a8f38b732c16d9bdca9fdfc0d181bf32b1ca68f2a98fb7914e6319e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/AUKDT2300698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceedd470a61ec7343ab0e65611f9153aea636b0fd760fa5e6570236f55943d7f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/AUKDT2300559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693255b7ff48407782e046f6b41d9a5c509489f5e8905f807c7ed96945ce9f9d. 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/NLAM42300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87eb0cc0031698a50c14d52ae7f89838c3ab61da3563ae45e3c2fb1036980950. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLAM42300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30713e0718a00322dae3f670946f989e16c4e3b68fb0634c4764792d33b16707. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLAM42300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ec01122809f406cb1c9baee14025033f36174f303642743928bd5e68b54090. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLAM42300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b7a08097d927afe5fb0a3f8ee788afca5603a7386179c9a24927ccefd1afee. 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/NLAM42200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7124addf4fb8917e27997b170154d8183ee32199187e23f2f08657780455d2bf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UKR6V2212745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4246763b1e1341932b9643024dfa8241170b9622e97da071e6aa73221c2b0900. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/UKR6V2212746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114591bd4f80552432a19ad368f3adb8235750d190c93f546e78fd20385cba56. 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/NLAM42200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d9b8d9f25d70111bac5cc4e3493f2ed1b7da42c2006cb301c873e9bb53b8e5. 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/UKR6V2212326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31d156c4c32ebc650ad6681142018308fb20f0f972983d0f1ca825a3f0a460a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUBLP2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcfb18eb2a45156c9ee6953896b7469f81705ec9532484872d79616d12a696e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HUBLP2200002.
Silence in the Heart - Solo Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe04a2abbed188497f114647cb807248a829f6a602a424380fbb7011e3176df3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUBLP2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4b376a66eff40095c95fe9e12b0aa292815cb7cb06d30c65795f48f92e3031. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM4TX2407956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc647ac363bddcc8c63e546bbb3e1db2ee3d4d42d850333d6b829e37783487de7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM4TX2407957.