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 0xc257696298608f74676ded80f23c9236e42bd8df2618e3e38017aed7ccaefa96. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb8092d5-f5c3-4df1-89fc-23ed2ecfe5d2.json and https://artists.proofprofile.net/proofs/artist/bb8092d5-f5c3-4df1-89fc-23ed2ecfe5d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0xec1626686d6dc52519bd089d593ebdcfdb10c67076675a5c034d87f76c4ba3c9. 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/USL4R0713947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfdfcec8b902ef69d3ff8b35e249a5c079a9ed590afe8bd6f07dca95015f328. 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/USL4R0713950.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefef31bee9069310549367a3e731b1ed4649e7d4a29e14d0fe77bc503ec623d. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/USL4R0713510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7f4b51dc5b0e715abe07d5d8886e311ecb2b8d29f275d364bcba1cd79985a6. 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/USL4R0713511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49030901fcffaa17ea4b66fd7c4e3b599f3952b57c576a4d773d7112d51c6d4e. 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/USL4R0713514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5eb7605af297a4b69cf7bddaccbf6c5dac5d01361a484549a06bade96af2b9c. 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/USL4R0708154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ef9752e9231cce85f2b07ee6d6fab7d9e1b4137adff25bab121a2c17055ffd. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USL4R0748083.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7a6b7dc0553a58638d3ecfa487261360a8330208fbdc556ff0b2642d4c909f. 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/USL4R0708049.
Music from The Goddess Workout Intro to Bellydance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a06310b9bac515f963f56adcb5ce462f8e6c7a4f4981f639b9912917797c94d. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USL4R0707996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302acba479bdd93fbe750ca4a7e8ce42cd438c519c22b62b68eabb73843796ab. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USL4R0707997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb812d0ad4d0618959b178e4578e4fad11f0aaa78256a2a90dd0e179e735a6da. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USL4R0707998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7616b012937d8a9190bc2784eb402cf652516582dc05c8dbcff85c1497fb9bc. 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/USL4R0707999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ccecaf701cd4712607cbe2892233bdee1e23c04b1165f637c8a2f113e7c251. 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/USL4R0708000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b907e74a605252f1fb286ca5a41b487823589fae147069441d0ec00ff0485f8. 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/USL4R0708002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579e5c8f870906c572cee06a61e195d6b62db1ed57f220b8bbaa2c9c9eed9996. 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/USL4R0708003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db5cc82ed91a9de07a60466ff1c0955c6eb3a725f1920e2e43923a9826c4117. 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/USL4R0708005.