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 0x4e14e565f0346ed698802b4e98f0f75ca24d0928eb862a551239618e3cab85b2. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/869dfd38-1ed6-47fc-bd8e-ef2ecff14abd.json and https://artists.proofprofile.net/proofs/artist/869dfd38-1ed6-47fc-bd8e-ef2ecff14abd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
7 Days in Havana: Original Motion Picture Soundtrack
La Rumba No Se Aprende a Tocar En 7 Dias
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 0xacd6fab5ece66da3b3c88773c07724f5106064015d33a5bd8ba75736881ac9a2. 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/GB2H71200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4a9e999bb3a034c21034585e2c3e7850ec5bcc285b5fceade301fe60c0870d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GB2H71200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0cf9885909c2fbe030b660543b7ff64998ff6292c712fee839951c1cb60fcd. 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/GB2H71200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2dfa1c215ab4df9c7c85c1bdfd272f2cf70dee34e3c139d7e21b64ddcc4ee8. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GB2H71200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d36187fa035197a8088caf4467274d984f70c035e417e9ce934e133d99f970. 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/GB2H71200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad11a27961dbaa85fe4976a18750ed221acb8cc3d0a7f273ecfd1b4ad20d178. 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/GB2H71200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8d2bd443354586ca2ea9593bf1f34ad87498b9e849eec096e17dac29c8d00b. 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/GB2H71200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa051f39cf40e0ca34ca5ff16bc6799b81a7f78d2a6a4b74b1c9917ade5acd353. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GB2H71200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdfa3546d926f3dc0269636b38e4cd97a8ffa7ae9720658e897c914cb3fb17be. 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/GB2H71200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451c9cf08b0bde9627496738f54fb2022bf318243d891bf2803db1a1b86beb55. 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/GB2H71200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e03b5da848136259e1ff06d8a55cd5668255dc7045d2027f9c3681e0b7ef7b. 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/GB2H71200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767e7b9209c75a5fb0d5aa874fd125bc1fcaf742dbf8145d887e49ec1d137ad9. 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/GB2H71200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7816d95baf5994673ff29dc6b497496875a3a37f00e07f24f139687e33b9e5f0. 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/GB2H71200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c67831b2553b14203d3ee81ce683ab2fff38f984a6914ffb09278cc2a2eb44. 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/GB2H71200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0641c692a19817d30ac1786afa57ae89ff85866dd72a5f1244ab39e08454422. 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/ARL862000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c56ffea6cb5df331da3c1e463b92f1a103f6797cfc1d07b31499f3d55909c8. 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/ARL862000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7235171769c788176ed426f0ef1424321044ebff6e12f558f1602f0cc3387844. 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/ARL862000108.
La Rumba No Se Aprende A Tocar En 7 Dias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d9d00009c907c09d9bcbc1d74c441ecc915ea29c457b7b2240515b86f7d9ef. 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/GB2H71200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4a9e999bb3a034c21034585e2c3e7850ec5bcc285b5fceade301fe60c0870d. 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/GB2H71200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2dfa1c215ab4df9c7c85c1bdfd272f2cf70dee34e3c139d7e21b64ddcc4ee8. 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/GB2H71200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe882329ab6307ff5c37ea2717c5f79b5c97433262a37247c0aec5b2b8ee2419e. 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/GB2H71200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d36187fa035197a8088caf4467274d984f70c035e417e9ce934e133d99f970. 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/GB2H71200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad11a27961dbaa85fe4976a18750ed221acb8cc3d0a7f273ecfd1b4ad20d178. 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/GB2H71200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8d2bd443354586ca2ea9593bf1f34ad87498b9e849eec096e17dac29c8d00b. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/GB2H71200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa051f39cf40e0ca34ca5ff16bc6799b81a7f78d2a6a4b74b1c9917ade5acd353. 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/GB2H71200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdfa3546d926f3dc0269636b38e4cd97a8ffa7ae9720658e897c914cb3fb17be. 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/GB2H71200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76309cff678dc518db9e084141fee1139c6b5be758a72930cd467ef5d6e28eff. 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/GB2H71200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451c9cf08b0bde9627496738f54fb2022bf318243d891bf2803db1a1b86beb55. 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/GB2H71200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e03b5da848136259e1ff06d8a55cd5668255dc7045d2027f9c3681e0b7ef7b. 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/GB2H71200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767e7b9209c75a5fb0d5aa874fd125bc1fcaf742dbf8145d887e49ec1d137ad9. 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/GB2H71200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7816d95baf5994673ff29dc6b497496875a3a37f00e07f24f139687e33b9e5f0. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/GB2H71200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c67831b2553b14203d3ee81ce683ab2fff38f984a6914ffb09278cc2a2eb44. 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/GB2H71200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ead2f74eaca54b7cc8d59fd3c2dbd25602b4bc4c317bbbdca8465566407742. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ES7731302010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e080c754fc5d909215d26e80ebce8036241ebd1da37928f66f3062187a60035. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ES7731302011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb2bd18f43322697a5f3e463e0d36fe9168a8ab5210cf1151110fcb2b29dfdc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES7731302004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844ecceb2eff731c8cc3acdb0603bca1502916c6968cfa93f93c345e1ff9a5de. 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/ES7731302003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18974381d103adaf00bd4cd4be03de0c53df82a14f185e11ac70514bce24fc79. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES7731302007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04854b2cc079506759ccbc05ba3108fc422dd2b845d26bd1c87ae27c3899904. 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/ES7731302006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b514410df695cb1420ed50b258419a660bfca17c0ce076464bb72570cc0c0b. 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/QZHN41991554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e080c754fc5d909215d26e80ebce8036241ebd1da37928f66f3062187a60035. 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/ES7731302011.