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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cac382503db07c38f3c5bf6fe22e3aa959f4238addddb379bddb57d08a9adfa. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a10039f-fb81-48e6-81d1-512915d9a507.json and https://artists.proofprofile.net/proofs/artist/6a10039f-fb81-48e6-81d1-512915d9a507.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tropa da vs Convocou um Pouquinho de Putaria
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60eedb7c3c5ab695dd998f646ff7b9a2287f743b0923ac6042a6c0469d44b438. 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/BCIH82100694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc041a9f01efc0cc7fbef2dca4c948fbda9dab27090b0b206e76934fcf78d25b5. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:58:55Z), 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/BCIH82201718.
Solta a Putaria Nessa Porra (Roça nos Trafica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba53491a07ab973b7aba458eb4e70a44412017732cf83ca157bca1568cba682f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTPX2258585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1989ba4fc14b514982b3eeaf3fb034b5910c03bf1575d4a9964a09271468b1d6. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/BC3PG2203904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a85619982ba9c8e1f08bcef8806b5aad1420a3fd0623123a5fb7c3a7200ce68. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/BCE7P2200875.
Amiga da Minha Mulher a Novinha Vs Ele Passa e Me Esfrega
Lá na Treta do Fp X Tropa de Volta Redonda
VEM SEM MEDO MULHER, NA POLÔNIA É O CABARÉ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f0f524a07fca7193d09481a6748572e11d497e0ab93affa509498f5513b5b0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BKFUX2305876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c013c05a5bc66f5303010e5edb08de8413b8d022548ecce6d4f9e6b83380a1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BKFUX2305924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50385dcadd22788e813fc8fff4a4e51bec189b02fea7ad71b6fc13c1d686607c. 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/QZ5AB1824179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f4aa5da81f0ba7800dcfd02c374bbc0becab196e4da04730924a663a269144. 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/BCIH82305596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1e031c8522c0d13cffccdc86cc9cd5ab2ccf500507ed6289cd4890e4418d3e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM3DF2138228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a8cea38adb5b75a681bcbd51a03daf2a249634f4cf4579f382596b1383a2e7. 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/QZTV32331308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b915bb738970d7094730201851d7a4a3241fc37a86e20b65dabfea9c7dda1c0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BC1U32200436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe4c97ea6ea07e35e6f511f8505f162044345c2c514a9f1bc1335e118aa72b5. 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/BCZ582400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fec285cc36ca7067b622ae33a64522fdb7b5e3ede8bfcbd84758063c165b59. 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/QZGLS2279690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dd4228645f603f790f3d2bb0feabe9992f92afbe5bae0a788336cbac22a93b. 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/QZTPX2483478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c4e890afe48c5364425bc3381ec8a307a524f0cc0cea48ae78c3d8c2db5589. 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/QZNJV2093900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f91df3a0f603708d921d23986e02c1670f69898f782892cacbe1e0bbedbd3a8. 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/BCLWS2404719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa427a41a17e0166e26eb18b355e6088605883b14041b167a04db1b92b0fd0bd. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/BX5EU2300005.
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