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 0x5f3acaa747851871bbceaa06bcd16babbcc73ad4577c364f527304170cf2a5d3. 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/7623af75-d321-464f-abdb-44e63d7fece0.json and https://artists.proofprofile.net/proofs/artist/7623af75-d321-464f-abdb-44e63d7fece0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Skarbu Live (Ngamen Di Loteng Session 7)
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 0xceb0aa720f3f71e3f24863392b3e4b6b4aa71a0bab747729360196e646599252. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DGA0L2493567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1c8487a2b6a07ec5411ab04637e9f574767fdb5ca3ca1c2402de76a70d1413. 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/DGA0L2493568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2569fcbe070143292f98211da84c1517477baa9a5232c0153d90752ec8263fa. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DGA0L2493569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2550a58997509b90c81b0d4eeecb31581274e8ccb3ea61b446fb2ff3e6128c88. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DGA0L2493570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5d9b180df971503124c8f088d3c62365ea6650da4a0f1d591308e0691b12f3. 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/DGA0L2493571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe7abdc85900c78993d6d62c0cc13f3cfb6eed2b1ba2230d2c52705cdc7e9c7. 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/DGA0L2493572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2101455f90ba4a01d08530431d2fc3d6af76385d9e1cd809df2b75bcfeaef040. 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/DGA0L2493573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ec97ed13878b4b30e4a447d281c91ac7f2568bfb6afff4844cb3853c4bf603. 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/DGA0L2493574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8990739c6a5be8b61e2924ea3b371352deacb2e10699bdfcfe61bfcfb785bd4. 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/DGA0L2493575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd188262d383668b98b2a0cf68d44cd215c1ace70e7b687f50420932842d1f68e. 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/FR96X2288465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7c4ce12ddb283def5f2a074e9e4b8a2d4ceea2f015dad99e34348c3a8ba36e. 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/FR96X2288466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54223df2a19895d49eae54657420efda8d980b7a97728816f54605d0a970942. 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/FR96X2288467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba7e15ed40d722e4ffe8447551cb589a0e7a8fa147436e055b2b954b681ecde. 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/FR96X2288468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02f94bd3bfb4ea666adee7909edc5b7262cb9f8c07f0adaa8ec16a919354a7b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR96X2288469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6e0ed33ec000418b5c49edb32b635c27f9b24ecdf3c801cefc9dc981bc9c4d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR96X2288470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82469971e2fde9801050e27c725918ac95203b3364629d31c98945d19db7d4cb. 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/FR96X2288471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4b8f5b6c55dad560fb62bf55c40f99cea46d258fff05c1207cd9357af609b1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR96X2288472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209b9ab03b81782e6e257e6184fd6ae46bcfd8b356e6e05ea2ec22ac5522a1f8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX872470590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c63669b008d3b6338f55a4df53fc1b4dc66cdb8bdcff31db2ca2896d153c9af. 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/FR59R2459171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a7dbd66da261001d673a8721e199580c5aec05130cdb2ca809ca257219d5c7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX762370758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7f51ad723f8fd42ad29fd1e597dfc8fe64c477c5540e354f48d46b0838d7fa. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRX282239514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1475c8049b414949d51bb13c8f6fdaff8ab8bffd38c6bc642b5ab00a5556304. 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/FR10S2275578.