Tula may refer to: Geography Antarctica Tula Mountains Tula Point Iran Tula, Iran, a village in Hormozgan Province Italy Tula, Sardinia, municipality (comune) in the province of Sassari, Italy Ke
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 0xa71a2d91708d8fb3569e39d0b7362a75f16aa59c614bdad09e9f6b3e8e24fbeb. 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/106fe028-4aa7-4a04-9e92-95a9779c6a33.json and https://artists.proofprofile.net/proofs/artist/106fe028-4aa7-4a04-9e92-95a9779c6a33.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 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 0x26eb21c8dd8f2f4503e469ef78f37e2fde1a353ff1a8f2fb8078584846b77d4b. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:42:48Z), 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/DEAL31500851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4883e05e7f860eec1f14b5aa27c381df000c194bf608a6c64e8b5ffd7693438. 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/TCACQ1616682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96211e2fd44f1b27b79bfc0795682db37d05c8db992a1f4b465df8185eb11067. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DEAL31500850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74a4496af49e4334144c8884428238629969f9d078cae3bc4efbed893a0c14a. 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/QMDA61839778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c2bb4f7a1cf85849fd9135595dee52d9979cbbcb573b6b411222d32423803e. 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/QMDA61839782.
Keep on Breathing (feat. Tula) (Kmln Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee80efe825d54fbd3c9ee385d88b89feef9f71e271b80db6a84848760ba30d7d. 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/QM6N21864620.
How Could This Be Wrong (feat. Tula) (Tsuruda Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4268be1f1e5f4fc0d9dde040e7c46fa1446db8c462c8889c84603e1b232c999. 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/QM6N21864654.
How Could This Be Wrong X Fistful of Silence (Remix) (revision)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435e5808a3ee594f33a71e8467546682fbde274c9513373fb38a65c2439125a8. 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/QMFME2160503.
Fistful of Silence X How Could This Be Wrong X Enter Formless (revision)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395ea30a0dbc58f1d65dab266b076f5ba2e44d6f9ee1dd9356ff866f5c2e9c49. 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/QMFME2160504.