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 0xb199057273c0e1433d130844dd301736d5f655bd8a37efbf612d7fa2b3b466f8. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/335eda67-5d0f-464c-9d4c-18df6daeffc2.json and https://artists.proofprofile.net/proofs/artist/335eda67-5d0f-464c-9d4c-18df6daeffc2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Puerta Abierta (feat. Bad Bunny, Noriel)
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 0x8c7a1c07144c1b045238f4f39f81ec8cd38dd8d530c35ed17413d86c42997f1a. 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/USWL12300996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87256bda1f4a25a038ffc13a0c80f92d06aae9530956cac552269e9a65d7ff56. 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/USWL12400684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb52e60053c0ce8d668e0c08008410a56c3f32d07be1e5181db2404488e63fb9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USL4R2342986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6ee55513adf1496edff3df76daa2a6d9d407125ab57de2de8235f6b08dc991. 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/USCGJ2402053.
TBT (feat. Kenia, Shadley, Jay Kendall & Shantty)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e06cb168d6b83daf4d2e6da6ac3f5a3fec8fec58f668549a6ebf339f47fb11. 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/QMEU32205192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1728507fa6463f8a457f1e58b1b2d2c012404b39606cc03fefef6bab0b93ef. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/MXF152200939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d43f28c6867dfbaafa20ff240cdbead72120732cbfd792bc5c1eb7b030cbe0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BK4DA2428671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd8519b0ec56a2ae49357b59b216cce8a83f0ab626aa78ccf52ad267052705a. 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/BK4DA2319276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd8519b0ec56a2ae49357b59b216cce8a83f0ab626aa78ccf52ad267052705a. 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/BK4DA2319276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac3aeb738c5f26f4316533c46baf0686c5331bad08675b9be69e77071a503f9. 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/USDY42366797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e669f1e426e74b30d379a77ddba9c96941c5756dd66f975d08aa2816e2a29b4. 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/USL4R2229922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1b9cc17a0881e0ec12007317dcb6ee11669a52b3e33386b3b82a9b8640aa8a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USHM92296053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a56ea39b23ecaf5bf456d8b9b93fb50ae12b25f2f045d686161eb539c8faf7. 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/USHM82278333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fea0e8102867969b2118838d8c0585bd1ea17ea4407d486f14086264645b272. 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/USCGJ2262962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa577f35171c4832f54fa9579266385cb2f7476e1cf597d294ddb7209af462db2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USL4Q2043246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8e4ca2fe2162dd4712c1de72a7c2d3f797ba82a12ec0be00a835c685381030. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZK6L2425767.
Sacarte Una Sonrisa (feat. Alex Badilla, Avi, Brian Cálar, David Nick, Emmanuel Blando, Kenia, Krizz Solano, Luisga, MaJo Cartín, Maul, Jona Mendez, Mia Paz, Molinna, Priscilla Díaz, Steven S