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 0x062637a9da3b7284777b209337a350adc005dcd68e08acc739462833fa6f78ea. 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/58bdcab7-a31a-4cfe-8933-54e6e6df02e5.json and https://artists.proofprofile.net/proofs/artist/58bdcab7-a31a-4cfe-8933-54e6e6df02e5.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 0xfc9b7ad5ac866e18e5fb6adb9684339c34b8ffee99bcdd7c19dd8566ff565a85. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARG991003359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ee64b97abf59cec3f0adb8fabc4ed0abcd7d3b165694eaf8916860c91e9a6b. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ARG991005429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ac3ac4f27cc64b70acda19372d792bd03720b859b27c36c25b873e5e7a0280. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ARG991005430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0761e525cf32a6dfecff38dcb0290177c8b1ca8ce991c0abfb8c21d207e7d39a. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ARG991005431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877eff63071381e5fb2bda37360b10438982f2c04578236bea666bacd3611aa0. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ARG991005432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf2fb50307fd3fb3080593721c4e5a7b44156b559422ff0f357d3a2d973490a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ARG991005433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9558083fd8488998d42f915df61e1e79ff49627f589f2ef82f9c1961a20320b5. 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/ARG991005435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619feb9fd018c4778077c2844a257770a04c20d4df846cce92471df905e518a6. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/ARG991005439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564412e29a49028f0884685b7e06257b7a3eea5b7881f3b482cf518aa0989be3. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/ARG991005441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcb64807c7d193d887c278f2f7cdd140fa1a1a9df4cde3309f73fc54d860a5a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ARG991033254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2fbf71787b93b96fa9bb77aec2f2f47be52652ecfdf2b511bef2b22e4be654. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARG991033255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4dff3d8bc43d58d3a00501902a8c1880e98ac0f98af54182ec49cb1d3a37c81. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ARG991033256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37818406555ba385015c2c8e404cbd72a709dbe7598d34e6aa6b8a71a36cfc2c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/ARG991033258.
La Champions Liga (Esto se va para arriba)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde93a122625800cf9ed743e064d656e918a74b4fbafdd7ae3ef2b420877fbb9f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARG991013253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83398c6914779aa09d1619369abce9e0edf7b39a2971618b1fb2fb7c430479a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARG991013255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659410ee607e79331f7b99a57b0bbcd449f48a3862933b7f60f51cefeeafab21. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/ARG991013257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5288b1d2ae8d022052993ae2c4cfd0cc542758ac78b4833768d6db65825db8. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/ARG991013261.
20 años de cumbia - Los mejores exitos de 1990 - 2010
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9aeadbcb22167af405367c007a002111f70ec2cc7b84f6755179c6edd48e40. 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/ARG991005658.