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 0x33fa6405c56c7e27e0468683ff9562e2e21e7691d14facbde0ed28463ef4c7b2. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8694960e-7315-4888-aa4a-7ec1c9ebcd55.json and https://artists.proofprofile.net/proofs/artist/8694960e-7315-4888-aa4a-7ec1c9ebcd55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
marginal da city - Pt. II - Trance Remix
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 0xa3e769da8fb03527f633f54c9e6a3e1ffe6cadfe147dd49051bed5798ab1803a. 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/PT2DY2400421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4100228810f079bb3a074862d01ff710c538c184e3f08bc08052e2dd9fb2b537. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PT2DY2400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21acd32ebcc5697867a232c8d8f743343c3183aa780f8b8747fd8efa17268ec8. 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/PT2DY2400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc852a851babf839dd281f766879a3ea1c7f707e4869008c33c9464475b03fd34. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PT2DY2400069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4855adf80f16693940f318c9668913a8366ca59bc261426564123cdadb448126. 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/PT2DY2400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b688af4616f85c2882e12f80d55b10b2907d3ecb6660f3b83f1f12e682af4be. 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/PT2DY2300183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b65df485f0996747186ab745b9b9fe51fe55e3a397de5107c80932a4372aaa. 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/PT2DY2300188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6976c12c8eef20ab0aff4ee2df99fac88e7bf347f14dc29f8158f6ac4cafa1c. 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/PT2DY2300566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0844b7eb9c09a2332da6ac9e36c869874d39a5004ba6c78f4787154441a37832. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/PTUM72100459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6aa671d0940cbaf4d70a3aae470bb5db2e50ee8a5803f53cdc8182a4cc08fd. 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/PTUM72100493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b3e181a918692f63a7613cb2ee9261291d01fc68d3df2c3b8c174e3a186cba. 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/PTUM72100497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0844b7eb9c09a2332da6ac9e36c869874d39a5004ba6c78f4787154441a37832. 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/PTUM72100459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8f6b58628f0531743566678a6478d71dff429deccd29fdaad131663644b737. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES71G2101604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cb02420acfbbbaa0035040e27314ea639f870f970081ccba7951c70b055907. 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/ES71G2101606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d0e65980a6cf40d775fc0f50f5707e91e5cef61e47151f1458139ab785336b. 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/ES71G2101607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fd71d8ba2cc136c1d08b7444d4896e013893a2f5b81b503e4117e5d600f46b. 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/ES71G2101608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d73eba68e715554fd3f4bbe9d95058026a14fd2fc7cedc6bd89d45f297733d. 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/ES71G2101609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5856870f51ec7321a11bc49705907c03da98e7bdb5a9f9e3038977d7d3f3ace7. 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/ES71G2101610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbecc9f42d46eaa3a41a957c176f2e1cd02568039a53ea59d38ff7e8ab91c0ec. 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/ES71G2101611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8125b35b8f6ae6ef79a93488d25c1c34ba56b668e0eec5e4e738c853944cfcf. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ES71G2101612.
A Subvalorização do Silêncio em Palavras
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81afb1025d9100e92778896c854d8b1682aba3e9c2f189ab36baec28d3a9fd42. 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/ES71G2101613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c192c71a6d86125318e024421d7adda208893002e8d262517f44c2d058f0cb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PT2DY2400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220eb453b1f15d31a83854bf1862d84ada725c68282189c23266eb0123082c4a. 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/QZES92452761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a4325131e24b18beeb1bd84c628a09f3599c8dfe79f9d0012cdb0eef27bfa3. 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/QZHN32464034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6ba19f5262d63c1ed01abb4ffcb563fd9e33bb33c8dbbfc82304ba76f61bcc. 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/QZHN32464037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4f963b87512bae6e17305cd9b68dbc61acaa4e546e9a3a962bfed280460690. 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/QZHN32464040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf20c5cd87c8d97a6074e45e446228acea5d91ea6e988c6a4aa3d3a8aa19941. 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/QZK6J2230256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec1de3b4fa0dc9062c7eca93fd782802ae9e49532024ea2d464463aaac1af1a. 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/QZTAT2224212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5edfb9f5d00d31f2ab435af5ed1939765c603aea8113484437af228d73a54b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZZ782476615.