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 0x242c31856a92d7bdaae34ba72a600a6457af546b5ed72c1039b03b6b2469631b. 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/2c558bff-79a4-4114-9d65-dede12b4580c.json and https://artists.proofprofile.net/proofs/artist/2c558bff-79a4-4114-9d65-dede12b4580c.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 0xe089b31ad04a466fd584ab7ab4051508f2bbf9e0e0009a13a70c5686ec597fc9. 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/BCIH82203087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb800afbd0fa2754c9512fb94110d07d0342a84df3a42e3f52bb6157fc266e898. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BCIH82201670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c606ba329709e68f4ab5c720e597c0527c4ea435cf8c58b075d628c383a36e. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BCIH82201671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc517ff2e1f1aeb6e740e206912317a45b23244547e4991c35f3f7101e25b2d00. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BCIH82201672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10ae78a9c7d87b2cd63312f59b132278575973ed0a592a7735a19b3dec7cfa8. 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/BCIH82201673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f900ac994a3c94bcc29cc2d24a2946bc80b25e4b750f655dfcb3671f863079. 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/BCIH82201674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd9051837ae02e1fa78769a02eb7859044393ec9d6872a2e171b9d0e338c3ac. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/BCIH82201675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8315f0e2fe702632fb215bf34e4656657c8958e87d98a20e6d1c978d7d44d6. 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/BCIH82201676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd437697ea16f353c04d50b172563f61494628124db560fcd7db20ab60637d02e. 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/BCIH82201677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1774805669c1e52d4d5359c30c3425f4ca29f75ac263e0d5d4724488e0a8feb0. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/BCIH82201678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185a2b7f6ac1569b3f6adc2e100fd7d7e9d3747d8df1eb226bbde994d5fdeaa9. 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/BCIH82201679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa34ea32ffa3bd77785bb82d196992122b285ee93e6c615d4acdf1429cb093e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/AEA3A2248914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0671e5fd33bf8e746284a4ac2cb428ac33917201d2b412556b7bf4cde27c12bc. 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/QZGLM2449759.
Balinha para Essa Garota - Slowed & Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe928c7fbf73861b70071cbb2edf58ef65edc5cee236c3c782c287be684b3e39a. 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/QZGLM2450452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd020e1629ea4a8ecdc70afbea29c62bd3d3566673466c86bb153ad28dffa72b. 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/QZW9L2334790.
Montagem Give On To Me - Michael Jackson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3671092b1ea53f14b53a2d19c623fa102edac18b8e3c3e946c6e30f751fc34. 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/BCIH82202146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dd8e9a11b55cc2f0e647abcbd5780fd35f8dc3af22d11255c84f59dd482b43. 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/BCIH82203050.