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 0xbc6d415e6342e8310200ec0d67b13c788e7014693bfda93fc5d7cd673f546b16. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e68138a4-9a5a-4c15-b48b-52d022752a96.json and https://artists.proofprofile.net/proofs/artist/e68138a4-9a5a-4c15-b48b-52d022752a96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 2
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 0xe5846d3221648f137aba3ab7bbfeadfa91df7d862293d1eb9f96979e6e8bffef. 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/CA5KR2149612.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d64d5c396ac1ee8bfb416052cee3ee9bc34b15083d7b80974091eabc301a866. 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/CA5KR2149613.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758b3bbb9ee1c3c68e454888e31def348938213f6f3b61a98cd8eb6eb5ee0458. 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/CA5KR2149618.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1068d9c60295ce77a7c2f9a947291746b2f3620c751231995b139699689ac82a. 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/CA5KR2149620.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783e5d514ec6fa6a75293c08e7d007d124a4a49d85cf1cde69ee4c13ac372e72. 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/CA5KR2149621.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 13
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8930d04b2148cd6a318c0476595e9a9190930f01e6251a592f87bf136387ee49. 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/CA5KR2149623.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 19
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25d56dcc1fc98d7ac8630de1e73f4e2fafeee713028f28e91990134f7f79d98. 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/CA5KR2149629.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 26
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7620926f2674de441bf16774bbcde3a6747a427e0db1d5babdc29510a33f6a0b. 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/CA5KR2149636.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9951a94d45e79a3913a8034cabdc874731aee89f698f2779dca3b208cf3da23. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CA5KR2149611.
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
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7999d0d23fed0beb86cdfa6dbc766a18301d1030bdd8f8b017f1830dfdbde598. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/CA5KR2149615.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1603b4a2f7ae4ff6503949be647abc1425e23e9e435744b006a74a40e15af68. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CA5KR2149616.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6570f0c3d708ebd1f7b5b4f2752c60b0bf7f99621fa75bbd892f28d338f392d3. 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/CA5KR2149617.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 12
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf8164d8303a952b2f9a85e64107a5c97f2578e131efd5b1a659275561c3cc4. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/CA5KR2149622.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 15
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9845c54897cb3e1e6b69b84a61460c70dbbdee5da6fab1f8257014cacd8914. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/CA5KR2149625.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 16
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625a2b5a39c5184382d3d796a0907b2336a1b7087ec43bbca99cbce2969016ec. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/CA5KR2149626.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 18
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cd38dc2252a2cadd97400a5021065c58674bd7ba7d7a4cc9dc8831ef3599c5. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/CA5KR2149628.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 20
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4797a4a05cb4eafe31eb1991ec8435e2620d4898e5abcb725973a835f9f5933. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/CA5KR2149630.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 22
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3d494ca2caf9b1adb4f5997b654516b20a0ec03b7f23c162379e72f78b8707. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/CA5KR2149632.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 23
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab1fcb9110bde54fecc45463c70a54b6334bbb82e825acc7f460539b7fc2e2d. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/CA5KR2149633.
Sonido de Lluvia en la Selva Para Dormir Rapido, Pt. 24
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796a73fcbea1bed597562fbfbbad29cc8977e93a7a0d9c890a109c9b0987119d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/CA5KR2149634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690f38f6496e2b98273c8379e5d2c7da9bbd33b597fba3ec67908dec90a2f86b. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/CA5KR2238939.