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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0ee98007a3ac3f0ac324691308d5b83d6d86a98e54586274ecacbd56202226. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4b805d7-21f1-47f8-827b-970dfec508ed.json and https://artists.proofprofile.net/proofs/artist/c4b805d7-21f1-47f8-827b-970dfec508ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Freestyle part 6 (Bar Before Valentines Day)
Freestyle part 10 (Biggie give me the loot)
Freestyle part 11 (Opposite direction of bad luck)
Freestyle part 19 [Happy mothers day (Toya]
Freestyle part 23 (No love in the hart of the city)
Freestyle part 25 (Late night bars pt.2)
Freestyle part 28 (Streets keep calling solo)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b738cfa2a0e2e6cab985dcd53d73af632acde5623f68ea09fc97af7295c9310. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZNWX2563620.
BOOMSQUAD Radio Hot Seat Mic Series (S2 E1)
BOOMSQUAD Radio Hot Seat Mic Series - S2 E1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88fb52e57c61566fc2089a7ade9a9c6c1e866085e8f87afbfc38c6e1259bcb3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTAU2587284.
BoomSquad Radio's Hot Seat Mic Series S2 E5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2bc841436bbdfd31e08bbd0dfeafd70a24b010ce369031f24416ccd4f381fe. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZTBD2574479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772783a2965560208a12c8b950bb5493f8a97376505940147eb95f018ece6a0c. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTB72553487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f07dc75dea6afa33b5b51ccd7dce0842c9cab68c3d715f0db53b648ca5e41c. 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/QZTB72549366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0175eec0628e48b8cbe5abe4ff8bf12fa70a6675d54797a5c03e9309225e2e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTBF2552946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ab334716b9eb4b9f72a56fd5d848b122c2f14a15961513eb5d1c699e4d882e. 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/QZTBF2552947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd83a7edc87ead33e9b907f43d8c4799c2d3347867ab0b0662e7331987cf402. 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/QZTBF2552948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24605b5ceab9c2c7755e7029c175850e04592ffe5a5c980e9216101e49b0a41. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZTBF2552949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe5df497229e8fa85472f2895b6fe2423774efb7ac48ccb203b4514b860098a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZTBF2552950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee87da7a43c59f4cb8feede6301196bf2a0e41a736bc127044291b01f5751e3. 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/QT3F62506840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac16c54dd652cc37828491b5b1652da5d2344a2bbb2ff62f7b7741aa749f8761. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QT3FC2554162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a3d19377bdf309f1517e062596472378e32f743af15392baf1b77a14761fc4. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QT3FC2554163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6dc63c771ccabd822b3533d1fa794efd496171388604625cce1d740a2ec1ee. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QT3FC2554164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8fb71ba9b1170a337dbf0f58138c36f64b7dcbf45ada86696bdd5103110d91. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QT3FF2538913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8774b27d395344a23b4dafa99dbd9a0263bbb598648c73125515342d660e0b8b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QT3FF2538914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92871943276e32c6dfa1135a94d2c2f3b88ccbb236797e4872b6b2366bd48065. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SE6A92140483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e14ecac0fc08474d8ca1c431980e94b61158cd0e96ea00296d8194da1446d49. 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/SE6SA2360328.