Barbro Margareta Svensson (9 March 1938 – 3 April 2018), known by her stage name Lill-Babs, was a Swedish singer, actress and television host. From the early 1950s until her death in 2018, she was one
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 0xf5ac0f9d03f052f74b9c94520b72821638dae44c1e327716980d21dbcfb4e2ec. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1409d04-d0b9-4c6f-a382-683cc8dfa4f4.json and https://artists.proofprofile.net/proofs/artist/d1409d04-d0b9-4c6f-a382-683cc8dfa4f4.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 0x957d2958b7f7921369420d4d9d5a7d85c025d01cac40570ef50a008ef712a088. 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/SEPQM0614423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7373e815b95992a91005d60de1606bde7089b804ac200684966720a8f6c6732. 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/SEPQM0614420.
Nu är våren kommen & Vaggvisa (feat. Malin Berghagen, Kristin Kaspersen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d67ef2a3143f9064912949f117faff4d6cc6f5f37539691a734ece19f239ed5. 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/SEPQM0614406.
Lill-Babs i en show av Lars Forssell (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ee8fb0d79dda887cbfb0aa564e7c947fa2196053c0ec75aadeec80332f0297. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/SEAZA6118070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ec25120c3439863fe235d7b00bbaec0ffa0614bf614241fbd1d629b13ebfc6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SEAZA6318120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339216c9a11d1e953a2ce9b06207e22b8deae33f7145be5a76552baaf88405e5. 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/SEPQA0124080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f9607f13c5964d055ad31789c4353e9264e5d48eb6fe9db95f52307effbef5. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:37:07Z), 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/SEAZA6118050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f88f4f9477d2df12f95abfd5afefd34e1bedca90da52253e79e95ba1e22663. 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/SEAZA6208010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9489af80cf2674639f2a07305fea4d631106ca18cb4380679181ea27e1d53d36. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SEVUJ0500702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b9285ffecbddef17102aa7f084afbd875b6e92af642fb2c145ed4ede14477a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEVUJ0500709.
Lill Babs & Dany Mann featuring Ted Herold
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cfb9c8cb03a75287116b3fc268b2a3d18f613599eca4f0b8b697223819d726. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SEAZA6815100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3412ebfe65084a8505254b95660690093ae3580c5877c2da6505c0448c4a93. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:05:25Z), 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/SEAZA5918020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132249b4023f5fc3ce542429d048d1a5e22e43177c7028c7fe33484e47fc9f47. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEAZA5902010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f04d1bad823f0aecfa0b9401afb08b385b1671c6cc01c1f00c5424eb082c31. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:40:52Z), 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/SEAZA6004010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e69e9748b7adc2c09f438b8da4177f9f3577384c28ecca6d6a8dd6ac907bdcf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SEAZA7118190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0503013e676c4f721fdf8baa4cd32416e005fe580ae745520489139762835b9. 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/SEUM72300488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e2543fee28d53667280835cf40516f496117ad280bdd38ff58c2cae275fab3. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/SEAZA6518130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07abe2479ca0865775a11be2b78489b24a2eb40f5fd2b58cf7affd97d80f6345. 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/SEAMD6546210.
Om alla berg och dalar vore ost och bröd...
Stora snapsvise - 99 snapsvisor - för jul, midsommar & kräftskiva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f1f69701caea398b6e611f4c0cf5facc2c29b53517d7c1aa8ade2f8a0bae9e. 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/SEAMA9563270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c840f41eb57dc137e8152e8f5e867ed457046c684615311ef684ff854befa74. 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/SEAMA9563110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e69e9748b7adc2c09f438b8da4177f9f3577384c28ecca6d6a8dd6ac907bdcf. 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/SEAZA7118190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ba1aee3583941bb46391985c6b41103c350b1ecf03f001f23d3051c0d39d02. 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/SEAZA6118080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e8828208a7b1592d0df254b5e4d6c88eb1490a4e575591c61728a17e15c29c. 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/SEAZA6318110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4629b2af27ab256b280c7c111faae7e73ddba15b511f13849a2ed51c3f71990b. 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/SEAZA5918030.
Itsy Bitsy Teenie Weenie Yellow Polka Dot Bikini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282727b5eb907b482990ddadb0a5fd5ee8a63bf5bac135f1eba1091cac67b356. 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/SEAZA6018040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cfb9c8cb03a75287116b3fc268b2a3d18f613599eca4f0b8b697223819d726. 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/SEAZA6815100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e8828208a7b1592d0df254b5e4d6c88eb1490a4e575591c61728a17e15c29c. 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/SEAZA6318110.