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 0x0192e7053d270bc0cb015a1595bc74604e36ba4ad9e10e6708650fd1f20598bb. 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/b9c5be7a-7d33-4c42-a62d-15feb79292ba.json and https://artists.proofprofile.net/proofs/artist/b9c5be7a-7d33-4c42-a62d-15feb79292ba.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba092d32bc607a72610db74a162717bf9fca61d84a4ffeb2c4923ea1e6f421d8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM81923528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333d933f95edff48254da61ab767974a969405a57746ae7263d6a18e122d9b04. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/USHM91993480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0452c704e9971d7ef98d5c4a2f5000e857e0ada4ccfd701ae326876de3c5334e. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USHM91993481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbee0d868ac7aa80f73065ae411cb1f7ba20ad1bfbe70a8a8558b807e531a32. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:45:35Z), 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/USHM91993482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8986c32c5ff9847c2acc55f2a9c8e42ad67c6dbbff58ff8a403029b4c0b119ac. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QM6P42029448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2425e28aedd20cb0cec152f184c566a8d5e1beda17a395d0339d22e2dbb8b1d. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/ARRWN2000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0b8abf75b0944581141b1a293d60420f42f69e9077704c225e7f15b9d50d0c. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T03:00:50Z), 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/QZNJW2193939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1571f38027269c3962746afce800752820d5e3d004b5b6ab4ebd67f680ea65f8. 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/QZGLS2363839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16be6e6e659ea6654642d4642a1bd3c81dc592af6be9e2b8ef010c707d5eb452. 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/QZGLS2363840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71514918fa9722e1ab7feec07a1a5864ee5fc817bdedb316ab24ad413778bfc3. 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/QZGLS2363841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae260b609ad70ffaa7b29381c0eeb1166e167aab4930b7e5b7fa230c768be54b. 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/QZGLS2363842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2846ac5992aa68b3914084efc343a301a05f4031e3dce5d6065bffcf729c35d1. 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/QZGLS2363843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9795588d5c60fac9bbb86d2a1e09e9daeb0e110b2aad0b7019db38f3b342e657. 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/QZGLS2363844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729f0a6469d722a06d8aaf4ef5f49e32885f719312ac71a9c7d688ee583ba167. 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/QZGLS2363845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3969336f3f855a177d50a76b16c7498cf85a931cd31142fa1f05bdde4d28ec43. 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/QZGLS2363846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96eb97332cdbb6dc29115e08821e367234a60ab2ca4b558aa750e001f0dfa732. 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/ARIXB2401782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0e6de1febe2619785c859ac3e8a6687ce5dfaa5be9df7ea83680e4626995b1. 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/AR0982480009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc42d241f528e410f4d0db193169820d54cce060e24dcf67ea8deafa2d4047b. 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/ARR6V2200339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ccaf837e563050aa235f25876a3a9af0c6c010dc67e236910f8f5cb270e3a5. 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/GX53U2010550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98eeb1cab1d6b3ef2e8a4c97aa4ab45651e26fbbefe26dbeddeacf07e14efd96. 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/QZNJY2378243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96eb97332cdbb6dc29115e08821e367234a60ab2ca4b558aa750e001f0dfa732. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:59:11Z), 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/ARIXB2401782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa535d4cd965482cf88395b0a3f50bfc0924d48da6b33af7fc201a065c77ac1f8. 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/ARRO92400455.
a todo el mundo le pasa (versión alternativa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31356de96c81296aeca5dbd314945c992fceaac8e122849cf4f3b800994f8286. 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/ARUM72500090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9d2b77d03eadf3b31cdae3ace5694d30b6568ca983cea2c611d084d1eb76aa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTPX2488344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd44bc8fefde280891d4d3b7e342f6ae0051b0f46ba546366410b003e009487. 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/ARTIP2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b800c5865589147d243231ebd447efe471e136371eca0fc0dd362ab001bf3a. 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/ARTIP2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb267b3ae383114bd7ca4976a15b85b9460eeea091d2b13ad1854c14c5dce77. 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/ARTIP2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b82d8360b02fcc8190b68fe1b945dd061cc05bfd3373a0e326912e760229afb. 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/ARTIP2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343eaf14bb1eecf3001572ef1b45706274c781fc3e820f6e56055a793cd17ca6. 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/QZNJZ2463811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d92fc2a47bbc3d6ec9abde81b090be5dbc4293427088024b4eff719f268317. 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/ARTIP2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cee2d1188574f609e3244a429ede853d79f61bcc56788a2fa2bcd7b7ff8131d. 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/ARTIP2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c991ad7f28eee6882aeaa07ca463786f0e7f05484d951d1282001a2dce54d3. 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/ARTIP2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4806f4018c862b917e48ac3c301fdc6a2a9bf4235c9545f1bf9a98e5e0aca7. 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/ARTIP2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585b25c76ab483a1f4155e7ec200803a366256f6e28992934c3a0e4fbd990b66. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/QMDA72345489.
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 0xce814909500a6fda450114a6d449d9945d91cafa4825686236fa4d4181adea39. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USCGH2484543.